Post on 24-May-2020
How to prepare a downstream user chemical safety report Practical guide 17
ABC
Legal NoticeThis document contains guidance on REACH explaining the REACH obligations and how to fulfil them However users are reminded that the text of the REACH regulation is the only authentic legal reference and that the information in this document does not constitute legal advice The European Chemicals Agency does not accept any liability with regard to the contents of this document
How to prepare a downstream user chemical safety reportPractical Guide 17
Reference ECHA-15-B-14-EN Cat number ED-AE-15-001-EN-N ISBN 978-92-9247-534-5 ISSN 1831-6727 DOI 102823159132 Date September 2015 Language English
copy European Chemicals Agency 2015
This document will be available in the following 23 languages Bulgarian Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hungarian Italian Latvian Lithuanian Maltese Polish Portuguese Romanian Slovakian Slovenian Spanish and Swedish
If you have questions or comments in relation to this document please send them (quoting the reference and issue date) using the information request form The form can be accessed via the lsquoContact ECHArsquo page at httpechaeuropaeucontact
European Chemicals AgencyMailing address PO Box 400 FI-00121 Helsinki FinlandVisiting address Annankatu 18 Helsinki Finland
VERSION CHANGES
Version 1 First edition
How to prepare a downstream user chemical safety assessment and report 3
The purpose and nature of practical guides
Practical guides aim to help stakeholders interact with the European Chemicals Agency (ECHA) They provide practical tips and advice and explain the Agencyrsquos processes and scientific approaches Practical guides are produced by ECHA under its sole responsibility They do not replace the formal Guidance (which is established under the formal guidance consultation process involving stakeholders) that provides the principles and interpretations needed for a thorough understanding of the requirements of REACH
This practical guide aims to assist downstream users to perform chemical safety assessments to fulfil their duties under Article 37(4) of the REACH regulation It reflects current thinking in this area at the time of publication The practical guide has been developed with input from the CSRES Roadmap task force on downstream users under roadmap action 45 whose assistance is gratefully acknowledged
See httpechaeuropaeucsr-es-roadmap for more details on the Roadmap
How to prepare a downstream user chemical safety assessment and report4
Table of ContentsTHE PURPOSE AND NATURE OF PRACTICAL GUIDES 31 INTRODUCTION 52 HOW TO START 93 GATHER NECESSARY INFORMATION 14
31 COMPILE THE INFORMATION 1432 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS 1533 SOURCES OF INFORMATION 1634 EXPOSURE LIMIT VALUES 16
4 APPROACH A SUPPLIER EXPOSURE SCENARIO 1841 STARTING POINT 1842 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER 18
5 APPROACH B SECTOR EXPOSURE SCENARIO 2151 STARTING POINT 2152 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION 21
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO 2461 STARTING POINT 2462 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER 2463 REFINE HAZARD ASSESSMENT 2664 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS 26
641 The scope of the exposure assessment 27642 Environmental assessment 27643 Human health assessment 27644 Generating exposure scenarios 28
65 ESTIMATE THE EXPOSURE 2866 CHARACTERISE THE RISK 32
661 Quantitative risk characterisation 32662 Semi-quantitative risk characterisation 33663 Qualitative risk characterisation 33664 Combined risk 34
7 DOCUMENT THE DU CSR 348 COMMUNICATING TO CUSTOMERS 379 REPORTING TO ECHA 38APPENDIX 1 EXAMPLES OF A DU CSR 40
EXAMPLE 1 COVER PAGE 41EXAMPLE 3 PART B - APPROACH A WITH CEFIC ES CONFORMITY TOOL 43EXAMPLE 4 PART B - APPROACH C WITH MEASURED DATA 45EXAMPLE 5 PART B - APPROACH C WITH MODELLED DATA 48
APPENDIX 2 CONTRIBUTING SCENARIO EXAMPLE 50APPENDIX 3 SPECIFYING RISK MANAGEMENT MEASURES 51APPENDIX 4 GLOSSARY 52APPENDIX 5 USEFUL REFERENCES AND LINKS 56
How to prepare a downstream user chemical safety assessment and report 5
1 Introduction
This chapter outlines the aims of this practical guide It directs you to where you can find the information that will help you fulfil your duties relating to downstream user chemical safety reports when required under Article 37(4) of the REACH Regulation
A downstream user chemical safety report (DU CSR) is prepared by a downstream user (DU) to document the assessment of the conditions of safe use of a substance It is undertaken for a use (including conditions of use) that is not covered in the exposure scenarios received from the supplier
If you are a downstream user and intend to prepare a chemical safety report (CSR) for a substance this practical guide describes the approaches you can take to assess the risks and document the assessment
To benefit from this guide you need to know some basics about REACH You should already be familiar with the exposure scenarios (ESs) you receive from suppliers and how you can check that they cover your use This information is not repeated here but TIP Box 1 directs you to where you can find useful background information and TIP Box 2 clarifies some terminology ECHA guidance on DU CSR is provided in Section 5 in ldquoGui-dance for downstream usersrdquo
In this practical guide we assume that
bull The substance is classified and registered under REACH and you have received a safety data sheet with exposure scenarios
bull You know how to check the exposure scenarios for a substance that you have received from your supplier in order to meet your obligations under REACH
bull You have established that your specific use of the substance andor conditions of use are not covered by the exposure scenarios received for that substance or that the use is advised against
bull You are aware of the options available to you when your useconditions of use are not covered namely to bull ask your supplier to include your use within the identified uses and provide an ES for your use or bull implement conditions of use described in the ES from your supplier or bull replace the substance or process with a safer alternative or bull change supplier or bull prepare a DU CSR
bull You intend to prepare a DU CSR to cover your use of the substance or are considering that as an option bull You are aware of the exemptions that apply such that a DU CSR is not required These are summarised in
TIP Box 3 This practical guide does not specifically address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed on Annex XIV of REACH (authorisation list) Nevertheless many of the elements are relevant Introduction
This chapter outlines the aims of this practical guide It directs you to where you can find the information that will help you fulfil your duties under REACH
Although this practical guide aims to give easy-to-follow advice to help you prepare a DU CSR it is generally preferable that you contact your supplier and that your use is covered upstream A DU CSR is likely to be the preferred option if
bull you want to maintain your use as confidential orbull the use is advised against but you consider that the risk is controlled or
i
How to prepare a downstream user chemical safety assessment and report6
Downstream users and REACH
bull ECHA website pages for downstrem users echaeuropaeudownstreambull ECHA ldquoGuidance for downstream usersrdquo
Safety data sheets (SDS) and exposure scenarios (ES) including checking exposure scenarios and your options
bull eGuide 01 ldquoSDS and ES - advice for recipientsrdquobull Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo bull Section 4 in ldquoGuidance for downstream usersrdquobull CeficConcaweFECCDUCC - Messages to communicate in the supply chain on extended SDS for
substances
Other sources of information on DU CSR
bull Section 5 in ldquoGuidance for downstream usersrdquo bull Downstream Users of Chemicals Co-ordination Group (DUCC) ldquoReport on experience gained with
performing a downstream user chemical safety assessment (DU CSA) and developing a downstream user chemical safety report (DU CSR)rdquo
bull Useful links to all references in this guide are given in Appendix 5
bull For specific questions contact your national helpdesk or the ECHA Helpdesk
Tip Box 1 Where to find background information
bull the suppliers are unwilling to include the use when you contact them
Be aware that a DU CSR undertaken in compliance with the REACH Regulation does not fulfil obligations to undertake risk assessments under other national environmental and health and safety (EHS) legislation which implement directives such as the Chemical Agents Directive (CAD) and Industrial Emissions Directive (IED) However assessments undertaken under REACH can support those undertaken under EHS legislation and vice versa
This practical guide does not address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed in Annex XIV to REACH (Authorisation List) Nevertheless some elements may be of interest
How to prepare a downstream user chemical safety assessment and report 7
bull An exposure scenario (ES) you receive typically covers a use such as formulation and may be composed of a number of contributing scenarios (CSs) within that exposure scenario These CSs describe tasks or activities within the use (such as transfer mixing cleaning etc) and may describe conditions relating to environmental worker or consumer exposure and human health The term ldquoexposure scenariordquo in this practical guide refers to the exposure scenario itself to contributing scenarios within the exposure scenario or both
bull When the term ldquouserdquo is referred to in this practical guide it includes the foreseeable use by your customers of your products that contain the substance unless stated otherwise
bull The term ldquoyour useconditions of use are coveredrdquo includes the situation when you have used scaling to demonstrate that the actual conditions of use are covered
bull If some of the acronyms and terms used in this practical guide are new to you have a look at the glossary in Appendix 4 or definitions in ECHA-term httpecha-termechaeuropaeu
Tip Box 2 Understand the terminology
bull When you establish that your useconditions of use are not covered in the safety data sheet and exposure scenarios you receive from your suppliers or that the use is advised against REACH does not always require you to prepare a DU CSR The main exemptions are
bull You use the substance in total quantities below one tonne per year
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
bull The substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Article 14(2) of REACH)
bull The substance is persistent bioaccumulative and toxic (PBT)very persistent very bioaccumulative (vPvB) but is contained in a mixture in a concentration below 01 (weight by weight)
bull Check whether these exemptions apply before you start preparing a DU CSR Consult ECHA Guidance for downstream users section 442 for further details
bull You need to report to ECHA if you are claiming an exemption based on total quanities below one tonne per year or PPORD use See Chapter 9 for details on reporting to ECHA
Tip Box 3 Check that a DU CSR is required by the legislation before you start
How to prepare a downstream user chemical safety assessment and report8
Chapter 2 outlines various approaches to performing a chemical safety assessment (CSA) for a substance and Chapter 3 describes aspects relating to gathering information that are common to all approaches
Chapters 4 5 and 6 describe in detail the three main approaches to preparing a DU CSA You can read about each approach to see what suits you best or go directly to the approach you intend to use
Go to Chapter 7 for advice on how to document your DU CSR and Appendix 1 for examplesIf you are communicating the outcome of your DU CSR to customers have a look at Chapter 8
To find out about reporting unsupported uses to ECHA see Chapter 9
Overview of the Practical Guide
How to prepare a downstream user chemical safety assessment and report 9
See Question Box 1 at the end of this chapter if you have some questions about a DU CSR
Go to Chapter 3 for advice on how to gather information on your substance
Chapters 4 5 and 6 describe the three main approaches to doing a DU CSA that were outlined here You can read about each approach to see what suits you best or go directly to the approach you intend to use
2 How to start
You can perform a downstream user chemical safety assessment in a number of ways This chapter outlines the main approaches and describes when each approach is likely to be most suitable
The main steps in a downstream user chemical safety report (DU CSR) for a substance are outlined in Figure 1 in accordance with Annex XII to REACH The chemical safety assessment (CSA) that forms the core of the DU CSR can be performed in a number of ways and this practical guide describes three possible approaches These are termed
A Supplier exposure scenario modify the exposurecontributing scenario you receive from your supplier to show that the risk is controlled This is usually done with the aid of easy-to-use recalculation tools (Chapter 4)
B Sector exposure scenario use an exposure scenario developed by industry or sector organisation The sector exposure scenario is provided together with boundary conditions and an estimate of the exposure (Chapter 5)
C Own exposure scenario generate the exposure scenario yourself estimate the exposure using modelled or measured data and characterise the risk (Chapter 6)
An overview of these three approaches is presented in Table 1 together with examples of when they may be useful to apply A decision tree is shown in Figure 2 to help you select the appropriate approach for your situation The approaches are detailed in Chapters 4 to 6
A DU CSR does not have to be prepared according to one of these approaches but should incorporate the main steps outlined in Figure 1 With all approaches you also need to undertake the actions described in TIP Box 4
i
Next steps
How to prepare a downstream user chemical safety assessment and report10
Figure 1 Typical work process for a downstream user chemical safety report
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modifygenerateexposure scenario
Gather informationRefine hazard
information if necessary
Identify uses to be assessed
bull Communicate all relevant information downstream if supplying your substancemixture down the supply chain (Chapter 8)
bull Report to ECHA to inform them that you are preparing a DU CSR (Chapter 9)
bull Make sure that you implement the conditions of use you identify as adequate to control the risk in your DU CSR for your own use
bull Keep a record of what you have done for a period of at least 10 years
Tip Box 4 things to remember when you are preparing a DU CSR
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
Legal NoticeThis document contains guidance on REACH explaining the REACH obligations and how to fulfil them However users are reminded that the text of the REACH regulation is the only authentic legal reference and that the information in this document does not constitute legal advice The European Chemicals Agency does not accept any liability with regard to the contents of this document
How to prepare a downstream user chemical safety reportPractical Guide 17
Reference ECHA-15-B-14-EN Cat number ED-AE-15-001-EN-N ISBN 978-92-9247-534-5 ISSN 1831-6727 DOI 102823159132 Date September 2015 Language English
copy European Chemicals Agency 2015
This document will be available in the following 23 languages Bulgarian Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hungarian Italian Latvian Lithuanian Maltese Polish Portuguese Romanian Slovakian Slovenian Spanish and Swedish
If you have questions or comments in relation to this document please send them (quoting the reference and issue date) using the information request form The form can be accessed via the lsquoContact ECHArsquo page at httpechaeuropaeucontact
European Chemicals AgencyMailing address PO Box 400 FI-00121 Helsinki FinlandVisiting address Annankatu 18 Helsinki Finland
VERSION CHANGES
Version 1 First edition
How to prepare a downstream user chemical safety assessment and report 3
The purpose and nature of practical guides
Practical guides aim to help stakeholders interact with the European Chemicals Agency (ECHA) They provide practical tips and advice and explain the Agencyrsquos processes and scientific approaches Practical guides are produced by ECHA under its sole responsibility They do not replace the formal Guidance (which is established under the formal guidance consultation process involving stakeholders) that provides the principles and interpretations needed for a thorough understanding of the requirements of REACH
This practical guide aims to assist downstream users to perform chemical safety assessments to fulfil their duties under Article 37(4) of the REACH regulation It reflects current thinking in this area at the time of publication The practical guide has been developed with input from the CSRES Roadmap task force on downstream users under roadmap action 45 whose assistance is gratefully acknowledged
See httpechaeuropaeucsr-es-roadmap for more details on the Roadmap
How to prepare a downstream user chemical safety assessment and report4
Table of ContentsTHE PURPOSE AND NATURE OF PRACTICAL GUIDES 31 INTRODUCTION 52 HOW TO START 93 GATHER NECESSARY INFORMATION 14
31 COMPILE THE INFORMATION 1432 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS 1533 SOURCES OF INFORMATION 1634 EXPOSURE LIMIT VALUES 16
4 APPROACH A SUPPLIER EXPOSURE SCENARIO 1841 STARTING POINT 1842 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER 18
5 APPROACH B SECTOR EXPOSURE SCENARIO 2151 STARTING POINT 2152 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION 21
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO 2461 STARTING POINT 2462 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER 2463 REFINE HAZARD ASSESSMENT 2664 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS 26
641 The scope of the exposure assessment 27642 Environmental assessment 27643 Human health assessment 27644 Generating exposure scenarios 28
65 ESTIMATE THE EXPOSURE 2866 CHARACTERISE THE RISK 32
661 Quantitative risk characterisation 32662 Semi-quantitative risk characterisation 33663 Qualitative risk characterisation 33664 Combined risk 34
7 DOCUMENT THE DU CSR 348 COMMUNICATING TO CUSTOMERS 379 REPORTING TO ECHA 38APPENDIX 1 EXAMPLES OF A DU CSR 40
EXAMPLE 1 COVER PAGE 41EXAMPLE 3 PART B - APPROACH A WITH CEFIC ES CONFORMITY TOOL 43EXAMPLE 4 PART B - APPROACH C WITH MEASURED DATA 45EXAMPLE 5 PART B - APPROACH C WITH MODELLED DATA 48
APPENDIX 2 CONTRIBUTING SCENARIO EXAMPLE 50APPENDIX 3 SPECIFYING RISK MANAGEMENT MEASURES 51APPENDIX 4 GLOSSARY 52APPENDIX 5 USEFUL REFERENCES AND LINKS 56
How to prepare a downstream user chemical safety assessment and report 5
1 Introduction
This chapter outlines the aims of this practical guide It directs you to where you can find the information that will help you fulfil your duties relating to downstream user chemical safety reports when required under Article 37(4) of the REACH Regulation
A downstream user chemical safety report (DU CSR) is prepared by a downstream user (DU) to document the assessment of the conditions of safe use of a substance It is undertaken for a use (including conditions of use) that is not covered in the exposure scenarios received from the supplier
If you are a downstream user and intend to prepare a chemical safety report (CSR) for a substance this practical guide describes the approaches you can take to assess the risks and document the assessment
To benefit from this guide you need to know some basics about REACH You should already be familiar with the exposure scenarios (ESs) you receive from suppliers and how you can check that they cover your use This information is not repeated here but TIP Box 1 directs you to where you can find useful background information and TIP Box 2 clarifies some terminology ECHA guidance on DU CSR is provided in Section 5 in ldquoGui-dance for downstream usersrdquo
In this practical guide we assume that
bull The substance is classified and registered under REACH and you have received a safety data sheet with exposure scenarios
bull You know how to check the exposure scenarios for a substance that you have received from your supplier in order to meet your obligations under REACH
bull You have established that your specific use of the substance andor conditions of use are not covered by the exposure scenarios received for that substance or that the use is advised against
bull You are aware of the options available to you when your useconditions of use are not covered namely to bull ask your supplier to include your use within the identified uses and provide an ES for your use or bull implement conditions of use described in the ES from your supplier or bull replace the substance or process with a safer alternative or bull change supplier or bull prepare a DU CSR
bull You intend to prepare a DU CSR to cover your use of the substance or are considering that as an option bull You are aware of the exemptions that apply such that a DU CSR is not required These are summarised in
TIP Box 3 This practical guide does not specifically address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed on Annex XIV of REACH (authorisation list) Nevertheless many of the elements are relevant Introduction
This chapter outlines the aims of this practical guide It directs you to where you can find the information that will help you fulfil your duties under REACH
Although this practical guide aims to give easy-to-follow advice to help you prepare a DU CSR it is generally preferable that you contact your supplier and that your use is covered upstream A DU CSR is likely to be the preferred option if
bull you want to maintain your use as confidential orbull the use is advised against but you consider that the risk is controlled or
i
How to prepare a downstream user chemical safety assessment and report6
Downstream users and REACH
bull ECHA website pages for downstrem users echaeuropaeudownstreambull ECHA ldquoGuidance for downstream usersrdquo
Safety data sheets (SDS) and exposure scenarios (ES) including checking exposure scenarios and your options
bull eGuide 01 ldquoSDS and ES - advice for recipientsrdquobull Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo bull Section 4 in ldquoGuidance for downstream usersrdquobull CeficConcaweFECCDUCC - Messages to communicate in the supply chain on extended SDS for
substances
Other sources of information on DU CSR
bull Section 5 in ldquoGuidance for downstream usersrdquo bull Downstream Users of Chemicals Co-ordination Group (DUCC) ldquoReport on experience gained with
performing a downstream user chemical safety assessment (DU CSA) and developing a downstream user chemical safety report (DU CSR)rdquo
bull Useful links to all references in this guide are given in Appendix 5
bull For specific questions contact your national helpdesk or the ECHA Helpdesk
Tip Box 1 Where to find background information
bull the suppliers are unwilling to include the use when you contact them
Be aware that a DU CSR undertaken in compliance with the REACH Regulation does not fulfil obligations to undertake risk assessments under other national environmental and health and safety (EHS) legislation which implement directives such as the Chemical Agents Directive (CAD) and Industrial Emissions Directive (IED) However assessments undertaken under REACH can support those undertaken under EHS legislation and vice versa
This practical guide does not address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed in Annex XIV to REACH (Authorisation List) Nevertheless some elements may be of interest
How to prepare a downstream user chemical safety assessment and report 7
bull An exposure scenario (ES) you receive typically covers a use such as formulation and may be composed of a number of contributing scenarios (CSs) within that exposure scenario These CSs describe tasks or activities within the use (such as transfer mixing cleaning etc) and may describe conditions relating to environmental worker or consumer exposure and human health The term ldquoexposure scenariordquo in this practical guide refers to the exposure scenario itself to contributing scenarios within the exposure scenario or both
bull When the term ldquouserdquo is referred to in this practical guide it includes the foreseeable use by your customers of your products that contain the substance unless stated otherwise
bull The term ldquoyour useconditions of use are coveredrdquo includes the situation when you have used scaling to demonstrate that the actual conditions of use are covered
bull If some of the acronyms and terms used in this practical guide are new to you have a look at the glossary in Appendix 4 or definitions in ECHA-term httpecha-termechaeuropaeu
Tip Box 2 Understand the terminology
bull When you establish that your useconditions of use are not covered in the safety data sheet and exposure scenarios you receive from your suppliers or that the use is advised against REACH does not always require you to prepare a DU CSR The main exemptions are
bull You use the substance in total quantities below one tonne per year
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
bull The substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Article 14(2) of REACH)
bull The substance is persistent bioaccumulative and toxic (PBT)very persistent very bioaccumulative (vPvB) but is contained in a mixture in a concentration below 01 (weight by weight)
bull Check whether these exemptions apply before you start preparing a DU CSR Consult ECHA Guidance for downstream users section 442 for further details
bull You need to report to ECHA if you are claiming an exemption based on total quanities below one tonne per year or PPORD use See Chapter 9 for details on reporting to ECHA
Tip Box 3 Check that a DU CSR is required by the legislation before you start
How to prepare a downstream user chemical safety assessment and report8
Chapter 2 outlines various approaches to performing a chemical safety assessment (CSA) for a substance and Chapter 3 describes aspects relating to gathering information that are common to all approaches
Chapters 4 5 and 6 describe in detail the three main approaches to preparing a DU CSA You can read about each approach to see what suits you best or go directly to the approach you intend to use
Go to Chapter 7 for advice on how to document your DU CSR and Appendix 1 for examplesIf you are communicating the outcome of your DU CSR to customers have a look at Chapter 8
To find out about reporting unsupported uses to ECHA see Chapter 9
Overview of the Practical Guide
How to prepare a downstream user chemical safety assessment and report 9
See Question Box 1 at the end of this chapter if you have some questions about a DU CSR
Go to Chapter 3 for advice on how to gather information on your substance
Chapters 4 5 and 6 describe the three main approaches to doing a DU CSA that were outlined here You can read about each approach to see what suits you best or go directly to the approach you intend to use
2 How to start
You can perform a downstream user chemical safety assessment in a number of ways This chapter outlines the main approaches and describes when each approach is likely to be most suitable
The main steps in a downstream user chemical safety report (DU CSR) for a substance are outlined in Figure 1 in accordance with Annex XII to REACH The chemical safety assessment (CSA) that forms the core of the DU CSR can be performed in a number of ways and this practical guide describes three possible approaches These are termed
A Supplier exposure scenario modify the exposurecontributing scenario you receive from your supplier to show that the risk is controlled This is usually done with the aid of easy-to-use recalculation tools (Chapter 4)
B Sector exposure scenario use an exposure scenario developed by industry or sector organisation The sector exposure scenario is provided together with boundary conditions and an estimate of the exposure (Chapter 5)
C Own exposure scenario generate the exposure scenario yourself estimate the exposure using modelled or measured data and characterise the risk (Chapter 6)
An overview of these three approaches is presented in Table 1 together with examples of when they may be useful to apply A decision tree is shown in Figure 2 to help you select the appropriate approach for your situation The approaches are detailed in Chapters 4 to 6
A DU CSR does not have to be prepared according to one of these approaches but should incorporate the main steps outlined in Figure 1 With all approaches you also need to undertake the actions described in TIP Box 4
i
Next steps
How to prepare a downstream user chemical safety assessment and report10
Figure 1 Typical work process for a downstream user chemical safety report
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modifygenerateexposure scenario
Gather informationRefine hazard
information if necessary
Identify uses to be assessed
bull Communicate all relevant information downstream if supplying your substancemixture down the supply chain (Chapter 8)
bull Report to ECHA to inform them that you are preparing a DU CSR (Chapter 9)
bull Make sure that you implement the conditions of use you identify as adequate to control the risk in your DU CSR for your own use
bull Keep a record of what you have done for a period of at least 10 years
Tip Box 4 things to remember when you are preparing a DU CSR
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 3
The purpose and nature of practical guides
Practical guides aim to help stakeholders interact with the European Chemicals Agency (ECHA) They provide practical tips and advice and explain the Agencyrsquos processes and scientific approaches Practical guides are produced by ECHA under its sole responsibility They do not replace the formal Guidance (which is established under the formal guidance consultation process involving stakeholders) that provides the principles and interpretations needed for a thorough understanding of the requirements of REACH
This practical guide aims to assist downstream users to perform chemical safety assessments to fulfil their duties under Article 37(4) of the REACH regulation It reflects current thinking in this area at the time of publication The practical guide has been developed with input from the CSRES Roadmap task force on downstream users under roadmap action 45 whose assistance is gratefully acknowledged
See httpechaeuropaeucsr-es-roadmap for more details on the Roadmap
How to prepare a downstream user chemical safety assessment and report4
Table of ContentsTHE PURPOSE AND NATURE OF PRACTICAL GUIDES 31 INTRODUCTION 52 HOW TO START 93 GATHER NECESSARY INFORMATION 14
31 COMPILE THE INFORMATION 1432 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS 1533 SOURCES OF INFORMATION 1634 EXPOSURE LIMIT VALUES 16
4 APPROACH A SUPPLIER EXPOSURE SCENARIO 1841 STARTING POINT 1842 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER 18
5 APPROACH B SECTOR EXPOSURE SCENARIO 2151 STARTING POINT 2152 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION 21
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO 2461 STARTING POINT 2462 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER 2463 REFINE HAZARD ASSESSMENT 2664 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS 26
641 The scope of the exposure assessment 27642 Environmental assessment 27643 Human health assessment 27644 Generating exposure scenarios 28
65 ESTIMATE THE EXPOSURE 2866 CHARACTERISE THE RISK 32
661 Quantitative risk characterisation 32662 Semi-quantitative risk characterisation 33663 Qualitative risk characterisation 33664 Combined risk 34
7 DOCUMENT THE DU CSR 348 COMMUNICATING TO CUSTOMERS 379 REPORTING TO ECHA 38APPENDIX 1 EXAMPLES OF A DU CSR 40
EXAMPLE 1 COVER PAGE 41EXAMPLE 3 PART B - APPROACH A WITH CEFIC ES CONFORMITY TOOL 43EXAMPLE 4 PART B - APPROACH C WITH MEASURED DATA 45EXAMPLE 5 PART B - APPROACH C WITH MODELLED DATA 48
APPENDIX 2 CONTRIBUTING SCENARIO EXAMPLE 50APPENDIX 3 SPECIFYING RISK MANAGEMENT MEASURES 51APPENDIX 4 GLOSSARY 52APPENDIX 5 USEFUL REFERENCES AND LINKS 56
How to prepare a downstream user chemical safety assessment and report 5
1 Introduction
This chapter outlines the aims of this practical guide It directs you to where you can find the information that will help you fulfil your duties relating to downstream user chemical safety reports when required under Article 37(4) of the REACH Regulation
A downstream user chemical safety report (DU CSR) is prepared by a downstream user (DU) to document the assessment of the conditions of safe use of a substance It is undertaken for a use (including conditions of use) that is not covered in the exposure scenarios received from the supplier
If you are a downstream user and intend to prepare a chemical safety report (CSR) for a substance this practical guide describes the approaches you can take to assess the risks and document the assessment
To benefit from this guide you need to know some basics about REACH You should already be familiar with the exposure scenarios (ESs) you receive from suppliers and how you can check that they cover your use This information is not repeated here but TIP Box 1 directs you to where you can find useful background information and TIP Box 2 clarifies some terminology ECHA guidance on DU CSR is provided in Section 5 in ldquoGui-dance for downstream usersrdquo
In this practical guide we assume that
bull The substance is classified and registered under REACH and you have received a safety data sheet with exposure scenarios
bull You know how to check the exposure scenarios for a substance that you have received from your supplier in order to meet your obligations under REACH
bull You have established that your specific use of the substance andor conditions of use are not covered by the exposure scenarios received for that substance or that the use is advised against
bull You are aware of the options available to you when your useconditions of use are not covered namely to bull ask your supplier to include your use within the identified uses and provide an ES for your use or bull implement conditions of use described in the ES from your supplier or bull replace the substance or process with a safer alternative or bull change supplier or bull prepare a DU CSR
bull You intend to prepare a DU CSR to cover your use of the substance or are considering that as an option bull You are aware of the exemptions that apply such that a DU CSR is not required These are summarised in
TIP Box 3 This practical guide does not specifically address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed on Annex XIV of REACH (authorisation list) Nevertheless many of the elements are relevant Introduction
This chapter outlines the aims of this practical guide It directs you to where you can find the information that will help you fulfil your duties under REACH
Although this practical guide aims to give easy-to-follow advice to help you prepare a DU CSR it is generally preferable that you contact your supplier and that your use is covered upstream A DU CSR is likely to be the preferred option if
bull you want to maintain your use as confidential orbull the use is advised against but you consider that the risk is controlled or
i
How to prepare a downstream user chemical safety assessment and report6
Downstream users and REACH
bull ECHA website pages for downstrem users echaeuropaeudownstreambull ECHA ldquoGuidance for downstream usersrdquo
Safety data sheets (SDS) and exposure scenarios (ES) including checking exposure scenarios and your options
bull eGuide 01 ldquoSDS and ES - advice for recipientsrdquobull Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo bull Section 4 in ldquoGuidance for downstream usersrdquobull CeficConcaweFECCDUCC - Messages to communicate in the supply chain on extended SDS for
substances
Other sources of information on DU CSR
bull Section 5 in ldquoGuidance for downstream usersrdquo bull Downstream Users of Chemicals Co-ordination Group (DUCC) ldquoReport on experience gained with
performing a downstream user chemical safety assessment (DU CSA) and developing a downstream user chemical safety report (DU CSR)rdquo
bull Useful links to all references in this guide are given in Appendix 5
bull For specific questions contact your national helpdesk or the ECHA Helpdesk
Tip Box 1 Where to find background information
bull the suppliers are unwilling to include the use when you contact them
Be aware that a DU CSR undertaken in compliance with the REACH Regulation does not fulfil obligations to undertake risk assessments under other national environmental and health and safety (EHS) legislation which implement directives such as the Chemical Agents Directive (CAD) and Industrial Emissions Directive (IED) However assessments undertaken under REACH can support those undertaken under EHS legislation and vice versa
This practical guide does not address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed in Annex XIV to REACH (Authorisation List) Nevertheless some elements may be of interest
How to prepare a downstream user chemical safety assessment and report 7
bull An exposure scenario (ES) you receive typically covers a use such as formulation and may be composed of a number of contributing scenarios (CSs) within that exposure scenario These CSs describe tasks or activities within the use (such as transfer mixing cleaning etc) and may describe conditions relating to environmental worker or consumer exposure and human health The term ldquoexposure scenariordquo in this practical guide refers to the exposure scenario itself to contributing scenarios within the exposure scenario or both
bull When the term ldquouserdquo is referred to in this practical guide it includes the foreseeable use by your customers of your products that contain the substance unless stated otherwise
bull The term ldquoyour useconditions of use are coveredrdquo includes the situation when you have used scaling to demonstrate that the actual conditions of use are covered
bull If some of the acronyms and terms used in this practical guide are new to you have a look at the glossary in Appendix 4 or definitions in ECHA-term httpecha-termechaeuropaeu
Tip Box 2 Understand the terminology
bull When you establish that your useconditions of use are not covered in the safety data sheet and exposure scenarios you receive from your suppliers or that the use is advised against REACH does not always require you to prepare a DU CSR The main exemptions are
bull You use the substance in total quantities below one tonne per year
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
bull The substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Article 14(2) of REACH)
bull The substance is persistent bioaccumulative and toxic (PBT)very persistent very bioaccumulative (vPvB) but is contained in a mixture in a concentration below 01 (weight by weight)
bull Check whether these exemptions apply before you start preparing a DU CSR Consult ECHA Guidance for downstream users section 442 for further details
bull You need to report to ECHA if you are claiming an exemption based on total quanities below one tonne per year or PPORD use See Chapter 9 for details on reporting to ECHA
Tip Box 3 Check that a DU CSR is required by the legislation before you start
How to prepare a downstream user chemical safety assessment and report8
Chapter 2 outlines various approaches to performing a chemical safety assessment (CSA) for a substance and Chapter 3 describes aspects relating to gathering information that are common to all approaches
Chapters 4 5 and 6 describe in detail the three main approaches to preparing a DU CSA You can read about each approach to see what suits you best or go directly to the approach you intend to use
Go to Chapter 7 for advice on how to document your DU CSR and Appendix 1 for examplesIf you are communicating the outcome of your DU CSR to customers have a look at Chapter 8
To find out about reporting unsupported uses to ECHA see Chapter 9
Overview of the Practical Guide
How to prepare a downstream user chemical safety assessment and report 9
See Question Box 1 at the end of this chapter if you have some questions about a DU CSR
Go to Chapter 3 for advice on how to gather information on your substance
Chapters 4 5 and 6 describe the three main approaches to doing a DU CSA that were outlined here You can read about each approach to see what suits you best or go directly to the approach you intend to use
2 How to start
You can perform a downstream user chemical safety assessment in a number of ways This chapter outlines the main approaches and describes when each approach is likely to be most suitable
The main steps in a downstream user chemical safety report (DU CSR) for a substance are outlined in Figure 1 in accordance with Annex XII to REACH The chemical safety assessment (CSA) that forms the core of the DU CSR can be performed in a number of ways and this practical guide describes three possible approaches These are termed
A Supplier exposure scenario modify the exposurecontributing scenario you receive from your supplier to show that the risk is controlled This is usually done with the aid of easy-to-use recalculation tools (Chapter 4)
B Sector exposure scenario use an exposure scenario developed by industry or sector organisation The sector exposure scenario is provided together with boundary conditions and an estimate of the exposure (Chapter 5)
C Own exposure scenario generate the exposure scenario yourself estimate the exposure using modelled or measured data and characterise the risk (Chapter 6)
An overview of these three approaches is presented in Table 1 together with examples of when they may be useful to apply A decision tree is shown in Figure 2 to help you select the appropriate approach for your situation The approaches are detailed in Chapters 4 to 6
A DU CSR does not have to be prepared according to one of these approaches but should incorporate the main steps outlined in Figure 1 With all approaches you also need to undertake the actions described in TIP Box 4
i
Next steps
How to prepare a downstream user chemical safety assessment and report10
Figure 1 Typical work process for a downstream user chemical safety report
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modifygenerateexposure scenario
Gather informationRefine hazard
information if necessary
Identify uses to be assessed
bull Communicate all relevant information downstream if supplying your substancemixture down the supply chain (Chapter 8)
bull Report to ECHA to inform them that you are preparing a DU CSR (Chapter 9)
bull Make sure that you implement the conditions of use you identify as adequate to control the risk in your DU CSR for your own use
bull Keep a record of what you have done for a period of at least 10 years
Tip Box 4 things to remember when you are preparing a DU CSR
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report4
Table of ContentsTHE PURPOSE AND NATURE OF PRACTICAL GUIDES 31 INTRODUCTION 52 HOW TO START 93 GATHER NECESSARY INFORMATION 14
31 COMPILE THE INFORMATION 1432 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS 1533 SOURCES OF INFORMATION 1634 EXPOSURE LIMIT VALUES 16
4 APPROACH A SUPPLIER EXPOSURE SCENARIO 1841 STARTING POINT 1842 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER 18
5 APPROACH B SECTOR EXPOSURE SCENARIO 2151 STARTING POINT 2152 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION 21
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO 2461 STARTING POINT 2462 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER 2463 REFINE HAZARD ASSESSMENT 2664 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS 26
641 The scope of the exposure assessment 27642 Environmental assessment 27643 Human health assessment 27644 Generating exposure scenarios 28
65 ESTIMATE THE EXPOSURE 2866 CHARACTERISE THE RISK 32
661 Quantitative risk characterisation 32662 Semi-quantitative risk characterisation 33663 Qualitative risk characterisation 33664 Combined risk 34
7 DOCUMENT THE DU CSR 348 COMMUNICATING TO CUSTOMERS 379 REPORTING TO ECHA 38APPENDIX 1 EXAMPLES OF A DU CSR 40
EXAMPLE 1 COVER PAGE 41EXAMPLE 3 PART B - APPROACH A WITH CEFIC ES CONFORMITY TOOL 43EXAMPLE 4 PART B - APPROACH C WITH MEASURED DATA 45EXAMPLE 5 PART B - APPROACH C WITH MODELLED DATA 48
APPENDIX 2 CONTRIBUTING SCENARIO EXAMPLE 50APPENDIX 3 SPECIFYING RISK MANAGEMENT MEASURES 51APPENDIX 4 GLOSSARY 52APPENDIX 5 USEFUL REFERENCES AND LINKS 56
How to prepare a downstream user chemical safety assessment and report 5
1 Introduction
This chapter outlines the aims of this practical guide It directs you to where you can find the information that will help you fulfil your duties relating to downstream user chemical safety reports when required under Article 37(4) of the REACH Regulation
A downstream user chemical safety report (DU CSR) is prepared by a downstream user (DU) to document the assessment of the conditions of safe use of a substance It is undertaken for a use (including conditions of use) that is not covered in the exposure scenarios received from the supplier
If you are a downstream user and intend to prepare a chemical safety report (CSR) for a substance this practical guide describes the approaches you can take to assess the risks and document the assessment
To benefit from this guide you need to know some basics about REACH You should already be familiar with the exposure scenarios (ESs) you receive from suppliers and how you can check that they cover your use This information is not repeated here but TIP Box 1 directs you to where you can find useful background information and TIP Box 2 clarifies some terminology ECHA guidance on DU CSR is provided in Section 5 in ldquoGui-dance for downstream usersrdquo
In this practical guide we assume that
bull The substance is classified and registered under REACH and you have received a safety data sheet with exposure scenarios
bull You know how to check the exposure scenarios for a substance that you have received from your supplier in order to meet your obligations under REACH
bull You have established that your specific use of the substance andor conditions of use are not covered by the exposure scenarios received for that substance or that the use is advised against
bull You are aware of the options available to you when your useconditions of use are not covered namely to bull ask your supplier to include your use within the identified uses and provide an ES for your use or bull implement conditions of use described in the ES from your supplier or bull replace the substance or process with a safer alternative or bull change supplier or bull prepare a DU CSR
bull You intend to prepare a DU CSR to cover your use of the substance or are considering that as an option bull You are aware of the exemptions that apply such that a DU CSR is not required These are summarised in
TIP Box 3 This practical guide does not specifically address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed on Annex XIV of REACH (authorisation list) Nevertheless many of the elements are relevant Introduction
This chapter outlines the aims of this practical guide It directs you to where you can find the information that will help you fulfil your duties under REACH
Although this practical guide aims to give easy-to-follow advice to help you prepare a DU CSR it is generally preferable that you contact your supplier and that your use is covered upstream A DU CSR is likely to be the preferred option if
bull you want to maintain your use as confidential orbull the use is advised against but you consider that the risk is controlled or
i
How to prepare a downstream user chemical safety assessment and report6
Downstream users and REACH
bull ECHA website pages for downstrem users echaeuropaeudownstreambull ECHA ldquoGuidance for downstream usersrdquo
Safety data sheets (SDS) and exposure scenarios (ES) including checking exposure scenarios and your options
bull eGuide 01 ldquoSDS and ES - advice for recipientsrdquobull Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo bull Section 4 in ldquoGuidance for downstream usersrdquobull CeficConcaweFECCDUCC - Messages to communicate in the supply chain on extended SDS for
substances
Other sources of information on DU CSR
bull Section 5 in ldquoGuidance for downstream usersrdquo bull Downstream Users of Chemicals Co-ordination Group (DUCC) ldquoReport on experience gained with
performing a downstream user chemical safety assessment (DU CSA) and developing a downstream user chemical safety report (DU CSR)rdquo
bull Useful links to all references in this guide are given in Appendix 5
bull For specific questions contact your national helpdesk or the ECHA Helpdesk
Tip Box 1 Where to find background information
bull the suppliers are unwilling to include the use when you contact them
Be aware that a DU CSR undertaken in compliance with the REACH Regulation does not fulfil obligations to undertake risk assessments under other national environmental and health and safety (EHS) legislation which implement directives such as the Chemical Agents Directive (CAD) and Industrial Emissions Directive (IED) However assessments undertaken under REACH can support those undertaken under EHS legislation and vice versa
This practical guide does not address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed in Annex XIV to REACH (Authorisation List) Nevertheless some elements may be of interest
How to prepare a downstream user chemical safety assessment and report 7
bull An exposure scenario (ES) you receive typically covers a use such as formulation and may be composed of a number of contributing scenarios (CSs) within that exposure scenario These CSs describe tasks or activities within the use (such as transfer mixing cleaning etc) and may describe conditions relating to environmental worker or consumer exposure and human health The term ldquoexposure scenariordquo in this practical guide refers to the exposure scenario itself to contributing scenarios within the exposure scenario or both
bull When the term ldquouserdquo is referred to in this practical guide it includes the foreseeable use by your customers of your products that contain the substance unless stated otherwise
bull The term ldquoyour useconditions of use are coveredrdquo includes the situation when you have used scaling to demonstrate that the actual conditions of use are covered
bull If some of the acronyms and terms used in this practical guide are new to you have a look at the glossary in Appendix 4 or definitions in ECHA-term httpecha-termechaeuropaeu
Tip Box 2 Understand the terminology
bull When you establish that your useconditions of use are not covered in the safety data sheet and exposure scenarios you receive from your suppliers or that the use is advised against REACH does not always require you to prepare a DU CSR The main exemptions are
bull You use the substance in total quantities below one tonne per year
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
bull The substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Article 14(2) of REACH)
bull The substance is persistent bioaccumulative and toxic (PBT)very persistent very bioaccumulative (vPvB) but is contained in a mixture in a concentration below 01 (weight by weight)
bull Check whether these exemptions apply before you start preparing a DU CSR Consult ECHA Guidance for downstream users section 442 for further details
bull You need to report to ECHA if you are claiming an exemption based on total quanities below one tonne per year or PPORD use See Chapter 9 for details on reporting to ECHA
Tip Box 3 Check that a DU CSR is required by the legislation before you start
How to prepare a downstream user chemical safety assessment and report8
Chapter 2 outlines various approaches to performing a chemical safety assessment (CSA) for a substance and Chapter 3 describes aspects relating to gathering information that are common to all approaches
Chapters 4 5 and 6 describe in detail the three main approaches to preparing a DU CSA You can read about each approach to see what suits you best or go directly to the approach you intend to use
Go to Chapter 7 for advice on how to document your DU CSR and Appendix 1 for examplesIf you are communicating the outcome of your DU CSR to customers have a look at Chapter 8
To find out about reporting unsupported uses to ECHA see Chapter 9
Overview of the Practical Guide
How to prepare a downstream user chemical safety assessment and report 9
See Question Box 1 at the end of this chapter if you have some questions about a DU CSR
Go to Chapter 3 for advice on how to gather information on your substance
Chapters 4 5 and 6 describe the three main approaches to doing a DU CSA that were outlined here You can read about each approach to see what suits you best or go directly to the approach you intend to use
2 How to start
You can perform a downstream user chemical safety assessment in a number of ways This chapter outlines the main approaches and describes when each approach is likely to be most suitable
The main steps in a downstream user chemical safety report (DU CSR) for a substance are outlined in Figure 1 in accordance with Annex XII to REACH The chemical safety assessment (CSA) that forms the core of the DU CSR can be performed in a number of ways and this practical guide describes three possible approaches These are termed
A Supplier exposure scenario modify the exposurecontributing scenario you receive from your supplier to show that the risk is controlled This is usually done with the aid of easy-to-use recalculation tools (Chapter 4)
B Sector exposure scenario use an exposure scenario developed by industry or sector organisation The sector exposure scenario is provided together with boundary conditions and an estimate of the exposure (Chapter 5)
C Own exposure scenario generate the exposure scenario yourself estimate the exposure using modelled or measured data and characterise the risk (Chapter 6)
An overview of these three approaches is presented in Table 1 together with examples of when they may be useful to apply A decision tree is shown in Figure 2 to help you select the appropriate approach for your situation The approaches are detailed in Chapters 4 to 6
A DU CSR does not have to be prepared according to one of these approaches but should incorporate the main steps outlined in Figure 1 With all approaches you also need to undertake the actions described in TIP Box 4
i
Next steps
How to prepare a downstream user chemical safety assessment and report10
Figure 1 Typical work process for a downstream user chemical safety report
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modifygenerateexposure scenario
Gather informationRefine hazard
information if necessary
Identify uses to be assessed
bull Communicate all relevant information downstream if supplying your substancemixture down the supply chain (Chapter 8)
bull Report to ECHA to inform them that you are preparing a DU CSR (Chapter 9)
bull Make sure that you implement the conditions of use you identify as adequate to control the risk in your DU CSR for your own use
bull Keep a record of what you have done for a period of at least 10 years
Tip Box 4 things to remember when you are preparing a DU CSR
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 5
1 Introduction
This chapter outlines the aims of this practical guide It directs you to where you can find the information that will help you fulfil your duties relating to downstream user chemical safety reports when required under Article 37(4) of the REACH Regulation
A downstream user chemical safety report (DU CSR) is prepared by a downstream user (DU) to document the assessment of the conditions of safe use of a substance It is undertaken for a use (including conditions of use) that is not covered in the exposure scenarios received from the supplier
If you are a downstream user and intend to prepare a chemical safety report (CSR) for a substance this practical guide describes the approaches you can take to assess the risks and document the assessment
To benefit from this guide you need to know some basics about REACH You should already be familiar with the exposure scenarios (ESs) you receive from suppliers and how you can check that they cover your use This information is not repeated here but TIP Box 1 directs you to where you can find useful background information and TIP Box 2 clarifies some terminology ECHA guidance on DU CSR is provided in Section 5 in ldquoGui-dance for downstream usersrdquo
In this practical guide we assume that
bull The substance is classified and registered under REACH and you have received a safety data sheet with exposure scenarios
bull You know how to check the exposure scenarios for a substance that you have received from your supplier in order to meet your obligations under REACH
bull You have established that your specific use of the substance andor conditions of use are not covered by the exposure scenarios received for that substance or that the use is advised against
bull You are aware of the options available to you when your useconditions of use are not covered namely to bull ask your supplier to include your use within the identified uses and provide an ES for your use or bull implement conditions of use described in the ES from your supplier or bull replace the substance or process with a safer alternative or bull change supplier or bull prepare a DU CSR
bull You intend to prepare a DU CSR to cover your use of the substance or are considering that as an option bull You are aware of the exemptions that apply such that a DU CSR is not required These are summarised in
TIP Box 3 This practical guide does not specifically address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed on Annex XIV of REACH (authorisation list) Nevertheless many of the elements are relevant Introduction
This chapter outlines the aims of this practical guide It directs you to where you can find the information that will help you fulfil your duties under REACH
Although this practical guide aims to give easy-to-follow advice to help you prepare a DU CSR it is generally preferable that you contact your supplier and that your use is covered upstream A DU CSR is likely to be the preferred option if
bull you want to maintain your use as confidential orbull the use is advised against but you consider that the risk is controlled or
i
How to prepare a downstream user chemical safety assessment and report6
Downstream users and REACH
bull ECHA website pages for downstrem users echaeuropaeudownstreambull ECHA ldquoGuidance for downstream usersrdquo
Safety data sheets (SDS) and exposure scenarios (ES) including checking exposure scenarios and your options
bull eGuide 01 ldquoSDS and ES - advice for recipientsrdquobull Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo bull Section 4 in ldquoGuidance for downstream usersrdquobull CeficConcaweFECCDUCC - Messages to communicate in the supply chain on extended SDS for
substances
Other sources of information on DU CSR
bull Section 5 in ldquoGuidance for downstream usersrdquo bull Downstream Users of Chemicals Co-ordination Group (DUCC) ldquoReport on experience gained with
performing a downstream user chemical safety assessment (DU CSA) and developing a downstream user chemical safety report (DU CSR)rdquo
bull Useful links to all references in this guide are given in Appendix 5
bull For specific questions contact your national helpdesk or the ECHA Helpdesk
Tip Box 1 Where to find background information
bull the suppliers are unwilling to include the use when you contact them
Be aware that a DU CSR undertaken in compliance with the REACH Regulation does not fulfil obligations to undertake risk assessments under other national environmental and health and safety (EHS) legislation which implement directives such as the Chemical Agents Directive (CAD) and Industrial Emissions Directive (IED) However assessments undertaken under REACH can support those undertaken under EHS legislation and vice versa
This practical guide does not address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed in Annex XIV to REACH (Authorisation List) Nevertheless some elements may be of interest
How to prepare a downstream user chemical safety assessment and report 7
bull An exposure scenario (ES) you receive typically covers a use such as formulation and may be composed of a number of contributing scenarios (CSs) within that exposure scenario These CSs describe tasks or activities within the use (such as transfer mixing cleaning etc) and may describe conditions relating to environmental worker or consumer exposure and human health The term ldquoexposure scenariordquo in this practical guide refers to the exposure scenario itself to contributing scenarios within the exposure scenario or both
bull When the term ldquouserdquo is referred to in this practical guide it includes the foreseeable use by your customers of your products that contain the substance unless stated otherwise
bull The term ldquoyour useconditions of use are coveredrdquo includes the situation when you have used scaling to demonstrate that the actual conditions of use are covered
bull If some of the acronyms and terms used in this practical guide are new to you have a look at the glossary in Appendix 4 or definitions in ECHA-term httpecha-termechaeuropaeu
Tip Box 2 Understand the terminology
bull When you establish that your useconditions of use are not covered in the safety data sheet and exposure scenarios you receive from your suppliers or that the use is advised against REACH does not always require you to prepare a DU CSR The main exemptions are
bull You use the substance in total quantities below one tonne per year
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
bull The substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Article 14(2) of REACH)
bull The substance is persistent bioaccumulative and toxic (PBT)very persistent very bioaccumulative (vPvB) but is contained in a mixture in a concentration below 01 (weight by weight)
bull Check whether these exemptions apply before you start preparing a DU CSR Consult ECHA Guidance for downstream users section 442 for further details
bull You need to report to ECHA if you are claiming an exemption based on total quanities below one tonne per year or PPORD use See Chapter 9 for details on reporting to ECHA
Tip Box 3 Check that a DU CSR is required by the legislation before you start
How to prepare a downstream user chemical safety assessment and report8
Chapter 2 outlines various approaches to performing a chemical safety assessment (CSA) for a substance and Chapter 3 describes aspects relating to gathering information that are common to all approaches
Chapters 4 5 and 6 describe in detail the three main approaches to preparing a DU CSA You can read about each approach to see what suits you best or go directly to the approach you intend to use
Go to Chapter 7 for advice on how to document your DU CSR and Appendix 1 for examplesIf you are communicating the outcome of your DU CSR to customers have a look at Chapter 8
To find out about reporting unsupported uses to ECHA see Chapter 9
Overview of the Practical Guide
How to prepare a downstream user chemical safety assessment and report 9
See Question Box 1 at the end of this chapter if you have some questions about a DU CSR
Go to Chapter 3 for advice on how to gather information on your substance
Chapters 4 5 and 6 describe the three main approaches to doing a DU CSA that were outlined here You can read about each approach to see what suits you best or go directly to the approach you intend to use
2 How to start
You can perform a downstream user chemical safety assessment in a number of ways This chapter outlines the main approaches and describes when each approach is likely to be most suitable
The main steps in a downstream user chemical safety report (DU CSR) for a substance are outlined in Figure 1 in accordance with Annex XII to REACH The chemical safety assessment (CSA) that forms the core of the DU CSR can be performed in a number of ways and this practical guide describes three possible approaches These are termed
A Supplier exposure scenario modify the exposurecontributing scenario you receive from your supplier to show that the risk is controlled This is usually done with the aid of easy-to-use recalculation tools (Chapter 4)
B Sector exposure scenario use an exposure scenario developed by industry or sector organisation The sector exposure scenario is provided together with boundary conditions and an estimate of the exposure (Chapter 5)
C Own exposure scenario generate the exposure scenario yourself estimate the exposure using modelled or measured data and characterise the risk (Chapter 6)
An overview of these three approaches is presented in Table 1 together with examples of when they may be useful to apply A decision tree is shown in Figure 2 to help you select the appropriate approach for your situation The approaches are detailed in Chapters 4 to 6
A DU CSR does not have to be prepared according to one of these approaches but should incorporate the main steps outlined in Figure 1 With all approaches you also need to undertake the actions described in TIP Box 4
i
Next steps
How to prepare a downstream user chemical safety assessment and report10
Figure 1 Typical work process for a downstream user chemical safety report
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modifygenerateexposure scenario
Gather informationRefine hazard
information if necessary
Identify uses to be assessed
bull Communicate all relevant information downstream if supplying your substancemixture down the supply chain (Chapter 8)
bull Report to ECHA to inform them that you are preparing a DU CSR (Chapter 9)
bull Make sure that you implement the conditions of use you identify as adequate to control the risk in your DU CSR for your own use
bull Keep a record of what you have done for a period of at least 10 years
Tip Box 4 things to remember when you are preparing a DU CSR
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report6
Downstream users and REACH
bull ECHA website pages for downstrem users echaeuropaeudownstreambull ECHA ldquoGuidance for downstream usersrdquo
Safety data sheets (SDS) and exposure scenarios (ES) including checking exposure scenarios and your options
bull eGuide 01 ldquoSDS and ES - advice for recipientsrdquobull Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo bull Section 4 in ldquoGuidance for downstream usersrdquobull CeficConcaweFECCDUCC - Messages to communicate in the supply chain on extended SDS for
substances
Other sources of information on DU CSR
bull Section 5 in ldquoGuidance for downstream usersrdquo bull Downstream Users of Chemicals Co-ordination Group (DUCC) ldquoReport on experience gained with
performing a downstream user chemical safety assessment (DU CSA) and developing a downstream user chemical safety report (DU CSR)rdquo
bull Useful links to all references in this guide are given in Appendix 5
bull For specific questions contact your national helpdesk or the ECHA Helpdesk
Tip Box 1 Where to find background information
bull the suppliers are unwilling to include the use when you contact them
Be aware that a DU CSR undertaken in compliance with the REACH Regulation does not fulfil obligations to undertake risk assessments under other national environmental and health and safety (EHS) legislation which implement directives such as the Chemical Agents Directive (CAD) and Industrial Emissions Directive (IED) However assessments undertaken under REACH can support those undertaken under EHS legislation and vice versa
This practical guide does not address how a downstream user should prepare a chemical safety report when applying for an authorisation for the use of a substance that is listed in Annex XIV to REACH (Authorisation List) Nevertheless some elements may be of interest
How to prepare a downstream user chemical safety assessment and report 7
bull An exposure scenario (ES) you receive typically covers a use such as formulation and may be composed of a number of contributing scenarios (CSs) within that exposure scenario These CSs describe tasks or activities within the use (such as transfer mixing cleaning etc) and may describe conditions relating to environmental worker or consumer exposure and human health The term ldquoexposure scenariordquo in this practical guide refers to the exposure scenario itself to contributing scenarios within the exposure scenario or both
bull When the term ldquouserdquo is referred to in this practical guide it includes the foreseeable use by your customers of your products that contain the substance unless stated otherwise
bull The term ldquoyour useconditions of use are coveredrdquo includes the situation when you have used scaling to demonstrate that the actual conditions of use are covered
bull If some of the acronyms and terms used in this practical guide are new to you have a look at the glossary in Appendix 4 or definitions in ECHA-term httpecha-termechaeuropaeu
Tip Box 2 Understand the terminology
bull When you establish that your useconditions of use are not covered in the safety data sheet and exposure scenarios you receive from your suppliers or that the use is advised against REACH does not always require you to prepare a DU CSR The main exemptions are
bull You use the substance in total quantities below one tonne per year
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
bull The substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Article 14(2) of REACH)
bull The substance is persistent bioaccumulative and toxic (PBT)very persistent very bioaccumulative (vPvB) but is contained in a mixture in a concentration below 01 (weight by weight)
bull Check whether these exemptions apply before you start preparing a DU CSR Consult ECHA Guidance for downstream users section 442 for further details
bull You need to report to ECHA if you are claiming an exemption based on total quanities below one tonne per year or PPORD use See Chapter 9 for details on reporting to ECHA
Tip Box 3 Check that a DU CSR is required by the legislation before you start
How to prepare a downstream user chemical safety assessment and report8
Chapter 2 outlines various approaches to performing a chemical safety assessment (CSA) for a substance and Chapter 3 describes aspects relating to gathering information that are common to all approaches
Chapters 4 5 and 6 describe in detail the three main approaches to preparing a DU CSA You can read about each approach to see what suits you best or go directly to the approach you intend to use
Go to Chapter 7 for advice on how to document your DU CSR and Appendix 1 for examplesIf you are communicating the outcome of your DU CSR to customers have a look at Chapter 8
To find out about reporting unsupported uses to ECHA see Chapter 9
Overview of the Practical Guide
How to prepare a downstream user chemical safety assessment and report 9
See Question Box 1 at the end of this chapter if you have some questions about a DU CSR
Go to Chapter 3 for advice on how to gather information on your substance
Chapters 4 5 and 6 describe the three main approaches to doing a DU CSA that were outlined here You can read about each approach to see what suits you best or go directly to the approach you intend to use
2 How to start
You can perform a downstream user chemical safety assessment in a number of ways This chapter outlines the main approaches and describes when each approach is likely to be most suitable
The main steps in a downstream user chemical safety report (DU CSR) for a substance are outlined in Figure 1 in accordance with Annex XII to REACH The chemical safety assessment (CSA) that forms the core of the DU CSR can be performed in a number of ways and this practical guide describes three possible approaches These are termed
A Supplier exposure scenario modify the exposurecontributing scenario you receive from your supplier to show that the risk is controlled This is usually done with the aid of easy-to-use recalculation tools (Chapter 4)
B Sector exposure scenario use an exposure scenario developed by industry or sector organisation The sector exposure scenario is provided together with boundary conditions and an estimate of the exposure (Chapter 5)
C Own exposure scenario generate the exposure scenario yourself estimate the exposure using modelled or measured data and characterise the risk (Chapter 6)
An overview of these three approaches is presented in Table 1 together with examples of when they may be useful to apply A decision tree is shown in Figure 2 to help you select the appropriate approach for your situation The approaches are detailed in Chapters 4 to 6
A DU CSR does not have to be prepared according to one of these approaches but should incorporate the main steps outlined in Figure 1 With all approaches you also need to undertake the actions described in TIP Box 4
i
Next steps
How to prepare a downstream user chemical safety assessment and report10
Figure 1 Typical work process for a downstream user chemical safety report
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modifygenerateexposure scenario
Gather informationRefine hazard
information if necessary
Identify uses to be assessed
bull Communicate all relevant information downstream if supplying your substancemixture down the supply chain (Chapter 8)
bull Report to ECHA to inform them that you are preparing a DU CSR (Chapter 9)
bull Make sure that you implement the conditions of use you identify as adequate to control the risk in your DU CSR for your own use
bull Keep a record of what you have done for a period of at least 10 years
Tip Box 4 things to remember when you are preparing a DU CSR
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 7
bull An exposure scenario (ES) you receive typically covers a use such as formulation and may be composed of a number of contributing scenarios (CSs) within that exposure scenario These CSs describe tasks or activities within the use (such as transfer mixing cleaning etc) and may describe conditions relating to environmental worker or consumer exposure and human health The term ldquoexposure scenariordquo in this practical guide refers to the exposure scenario itself to contributing scenarios within the exposure scenario or both
bull When the term ldquouserdquo is referred to in this practical guide it includes the foreseeable use by your customers of your products that contain the substance unless stated otherwise
bull The term ldquoyour useconditions of use are coveredrdquo includes the situation when you have used scaling to demonstrate that the actual conditions of use are covered
bull If some of the acronyms and terms used in this practical guide are new to you have a look at the glossary in Appendix 4 or definitions in ECHA-term httpecha-termechaeuropaeu
Tip Box 2 Understand the terminology
bull When you establish that your useconditions of use are not covered in the safety data sheet and exposure scenarios you receive from your suppliers or that the use is advised against REACH does not always require you to prepare a DU CSR The main exemptions are
bull You use the substance in total quantities below one tonne per year
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
bull The substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Article 14(2) of REACH)
bull The substance is persistent bioaccumulative and toxic (PBT)very persistent very bioaccumulative (vPvB) but is contained in a mixture in a concentration below 01 (weight by weight)
bull Check whether these exemptions apply before you start preparing a DU CSR Consult ECHA Guidance for downstream users section 442 for further details
bull You need to report to ECHA if you are claiming an exemption based on total quanities below one tonne per year or PPORD use See Chapter 9 for details on reporting to ECHA
Tip Box 3 Check that a DU CSR is required by the legislation before you start
How to prepare a downstream user chemical safety assessment and report8
Chapter 2 outlines various approaches to performing a chemical safety assessment (CSA) for a substance and Chapter 3 describes aspects relating to gathering information that are common to all approaches
Chapters 4 5 and 6 describe in detail the three main approaches to preparing a DU CSA You can read about each approach to see what suits you best or go directly to the approach you intend to use
Go to Chapter 7 for advice on how to document your DU CSR and Appendix 1 for examplesIf you are communicating the outcome of your DU CSR to customers have a look at Chapter 8
To find out about reporting unsupported uses to ECHA see Chapter 9
Overview of the Practical Guide
How to prepare a downstream user chemical safety assessment and report 9
See Question Box 1 at the end of this chapter if you have some questions about a DU CSR
Go to Chapter 3 for advice on how to gather information on your substance
Chapters 4 5 and 6 describe the three main approaches to doing a DU CSA that were outlined here You can read about each approach to see what suits you best or go directly to the approach you intend to use
2 How to start
You can perform a downstream user chemical safety assessment in a number of ways This chapter outlines the main approaches and describes when each approach is likely to be most suitable
The main steps in a downstream user chemical safety report (DU CSR) for a substance are outlined in Figure 1 in accordance with Annex XII to REACH The chemical safety assessment (CSA) that forms the core of the DU CSR can be performed in a number of ways and this practical guide describes three possible approaches These are termed
A Supplier exposure scenario modify the exposurecontributing scenario you receive from your supplier to show that the risk is controlled This is usually done with the aid of easy-to-use recalculation tools (Chapter 4)
B Sector exposure scenario use an exposure scenario developed by industry or sector organisation The sector exposure scenario is provided together with boundary conditions and an estimate of the exposure (Chapter 5)
C Own exposure scenario generate the exposure scenario yourself estimate the exposure using modelled or measured data and characterise the risk (Chapter 6)
An overview of these three approaches is presented in Table 1 together with examples of when they may be useful to apply A decision tree is shown in Figure 2 to help you select the appropriate approach for your situation The approaches are detailed in Chapters 4 to 6
A DU CSR does not have to be prepared according to one of these approaches but should incorporate the main steps outlined in Figure 1 With all approaches you also need to undertake the actions described in TIP Box 4
i
Next steps
How to prepare a downstream user chemical safety assessment and report10
Figure 1 Typical work process for a downstream user chemical safety report
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modifygenerateexposure scenario
Gather informationRefine hazard
information if necessary
Identify uses to be assessed
bull Communicate all relevant information downstream if supplying your substancemixture down the supply chain (Chapter 8)
bull Report to ECHA to inform them that you are preparing a DU CSR (Chapter 9)
bull Make sure that you implement the conditions of use you identify as adequate to control the risk in your DU CSR for your own use
bull Keep a record of what you have done for a period of at least 10 years
Tip Box 4 things to remember when you are preparing a DU CSR
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report8
Chapter 2 outlines various approaches to performing a chemical safety assessment (CSA) for a substance and Chapter 3 describes aspects relating to gathering information that are common to all approaches
Chapters 4 5 and 6 describe in detail the three main approaches to preparing a DU CSA You can read about each approach to see what suits you best or go directly to the approach you intend to use
Go to Chapter 7 for advice on how to document your DU CSR and Appendix 1 for examplesIf you are communicating the outcome of your DU CSR to customers have a look at Chapter 8
To find out about reporting unsupported uses to ECHA see Chapter 9
Overview of the Practical Guide
How to prepare a downstream user chemical safety assessment and report 9
See Question Box 1 at the end of this chapter if you have some questions about a DU CSR
Go to Chapter 3 for advice on how to gather information on your substance
Chapters 4 5 and 6 describe the three main approaches to doing a DU CSA that were outlined here You can read about each approach to see what suits you best or go directly to the approach you intend to use
2 How to start
You can perform a downstream user chemical safety assessment in a number of ways This chapter outlines the main approaches and describes when each approach is likely to be most suitable
The main steps in a downstream user chemical safety report (DU CSR) for a substance are outlined in Figure 1 in accordance with Annex XII to REACH The chemical safety assessment (CSA) that forms the core of the DU CSR can be performed in a number of ways and this practical guide describes three possible approaches These are termed
A Supplier exposure scenario modify the exposurecontributing scenario you receive from your supplier to show that the risk is controlled This is usually done with the aid of easy-to-use recalculation tools (Chapter 4)
B Sector exposure scenario use an exposure scenario developed by industry or sector organisation The sector exposure scenario is provided together with boundary conditions and an estimate of the exposure (Chapter 5)
C Own exposure scenario generate the exposure scenario yourself estimate the exposure using modelled or measured data and characterise the risk (Chapter 6)
An overview of these three approaches is presented in Table 1 together with examples of when they may be useful to apply A decision tree is shown in Figure 2 to help you select the appropriate approach for your situation The approaches are detailed in Chapters 4 to 6
A DU CSR does not have to be prepared according to one of these approaches but should incorporate the main steps outlined in Figure 1 With all approaches you also need to undertake the actions described in TIP Box 4
i
Next steps
How to prepare a downstream user chemical safety assessment and report10
Figure 1 Typical work process for a downstream user chemical safety report
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modifygenerateexposure scenario
Gather informationRefine hazard
information if necessary
Identify uses to be assessed
bull Communicate all relevant information downstream if supplying your substancemixture down the supply chain (Chapter 8)
bull Report to ECHA to inform them that you are preparing a DU CSR (Chapter 9)
bull Make sure that you implement the conditions of use you identify as adequate to control the risk in your DU CSR for your own use
bull Keep a record of what you have done for a period of at least 10 years
Tip Box 4 things to remember when you are preparing a DU CSR
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 9
See Question Box 1 at the end of this chapter if you have some questions about a DU CSR
Go to Chapter 3 for advice on how to gather information on your substance
Chapters 4 5 and 6 describe the three main approaches to doing a DU CSA that were outlined here You can read about each approach to see what suits you best or go directly to the approach you intend to use
2 How to start
You can perform a downstream user chemical safety assessment in a number of ways This chapter outlines the main approaches and describes when each approach is likely to be most suitable
The main steps in a downstream user chemical safety report (DU CSR) for a substance are outlined in Figure 1 in accordance with Annex XII to REACH The chemical safety assessment (CSA) that forms the core of the DU CSR can be performed in a number of ways and this practical guide describes three possible approaches These are termed
A Supplier exposure scenario modify the exposurecontributing scenario you receive from your supplier to show that the risk is controlled This is usually done with the aid of easy-to-use recalculation tools (Chapter 4)
B Sector exposure scenario use an exposure scenario developed by industry or sector organisation The sector exposure scenario is provided together with boundary conditions and an estimate of the exposure (Chapter 5)
C Own exposure scenario generate the exposure scenario yourself estimate the exposure using modelled or measured data and characterise the risk (Chapter 6)
An overview of these three approaches is presented in Table 1 together with examples of when they may be useful to apply A decision tree is shown in Figure 2 to help you select the appropriate approach for your situation The approaches are detailed in Chapters 4 to 6
A DU CSR does not have to be prepared according to one of these approaches but should incorporate the main steps outlined in Figure 1 With all approaches you also need to undertake the actions described in TIP Box 4
i
Next steps
How to prepare a downstream user chemical safety assessment and report10
Figure 1 Typical work process for a downstream user chemical safety report
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modifygenerateexposure scenario
Gather informationRefine hazard
information if necessary
Identify uses to be assessed
bull Communicate all relevant information downstream if supplying your substancemixture down the supply chain (Chapter 8)
bull Report to ECHA to inform them that you are preparing a DU CSR (Chapter 9)
bull Make sure that you implement the conditions of use you identify as adequate to control the risk in your DU CSR for your own use
bull Keep a record of what you have done for a period of at least 10 years
Tip Box 4 things to remember when you are preparing a DU CSR
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report10
Figure 1 Typical work process for a downstream user chemical safety report
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modifygenerateexposure scenario
Gather informationRefine hazard
information if necessary
Identify uses to be assessed
bull Communicate all relevant information downstream if supplying your substancemixture down the supply chain (Chapter 8)
bull Report to ECHA to inform them that you are preparing a DU CSR (Chapter 9)
bull Make sure that you implement the conditions of use you identify as adequate to control the risk in your DU CSR for your own use
bull Keep a record of what you have done for a period of at least 10 years
Tip Box 4 things to remember when you are preparing a DU CSR
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 11
Table 1 Overview of the main approaches for a downstream user chemical safety report
APPROACH A SUPPLIER EXPOSURE SCENARIO B SECTOR EXPOSURE SCENARIO C OWN EXPOSURE SCENARIO
SHORT DESCRIPTION OF AP-PROACH
Modify the exposure scenario received from your supplier
Identify and use a suitable exposure scenario provided by a sector organisation for a generic DU CSR
Demonstrate safe use based on a new exposure scenario including exposure estimation and risk characterisation
WHEN THE APPROACH CAN BE APPLIED
Your use is described in the exposure scenarios you receive but the conditions of use are different and your use is not covered
A suitable sector exposure scenario is available exposure estimates are included and the substance properties and use are within the boundaries of that scenario
This approach can be applied in all situations in particular when a supplier exposure scenario or sector use scenario is not available or suitable or a more thorough assessment is warranted including refinement of the hazard assessment
COMMENT
This approach is similar to modifying the exposure scenario to check if your conditions of use are covered in the exposure scenarios you receive by using scaling but is applied outside the defined boundaries of scaling
This approach is applicable only when suitable exposure scenarios are available for this purpose together with the exposure estimate and applicability domain They are typically developed by sector associations
This approach can often be based on the risk assessments you do on site adapted to REACH requirements The complexity of this approach varies depending on the situation
EXAMPLES BASED ON A DU SITE WHERE THEY COAT ARTICLES BY DIPPING
You coat articles by dipping The exposure scenarios you receive for that substance refer to coating by dipping using local exhaust ventilation Your factory has good general ventilation a less effective risk management measure but you use it for a shorter duration than specified in the exposure scenario
You coat articles by dipping The exposure scenarios you receive refer only to spray coating or do not refer to coating at all Your sector organisation has made an exposure scenario available that describes your use and includes exposure estimates and information on boundaries
You coat articles by dipping The exposure scenarios you receive advise against this use However your system is an enclosed remotely operated system and your on-site risk assessment has shown exposure to be low
MORE INFORMATION Chapter 4 Chapter 5 Chapter 6
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report12
Figure 2 Decision tree to select the appropriate approach for a downstream user chemical safety assessment
Identify use to be assessed
Is Approach ASupplier ES suitable
Approach ASupplier ES
Is Approach BSector ES suitable
Is your own use included in the supplier ES
Is Sector ES available for your use
Approach BSector ES
Approach COwn ES
NoNo
Yes
Yes Yes
Yes
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 13
Q1 I have undertaken a site-wide risk assessment under national environmental and health and safety regulations From that I conclude that all environmental and worker exposure risks are controlled Do I still have to prepare a DU CSR A Yes you need to prepare a DU CSR for any uses not covered by the ESs received from your supplier However you should take account of any risk assessments taken out under other Community legislation and justify any deviations Conversely a DU CSR undertaken as part of the REACH Regulation can support assessments to be undertaken under other Community legislation but does not fulfil those requirements completely
Q2 I have prepared a DU CSR but have now received an exposure scenario from another supplier which is different to that from my original supplier It again shows my use is not covered Do I have to do another DU CSR A There is no need to repeat it as you have already demonstrated that your use or the use of your customer is safe However if the later supplier provides new information on risks and hazards which were not available when you prepared your DU CSR you should communicate with your suppliers to investigate the reasons for such differences and assess the need to update your DU CSR and your on-site risk assessments under other environmental health and safety legislation
Q3 We are formulators and there are several substances in the mixture for which the use is not covered Can I prepare the CSR for the mixture rather than for each of the individual substances A The DU CSR under REACH is generally undertaken on a substance basis A DU CSR can be prepared for a mixture although this is not addressed in this Practical Guide or in Guidance Nevertheless the advice provided for substance DU CSRs may be of use if undertaking DU CSRs for mixtures
Q4 We are formulators and a customer has asked us to cover their use Are we obliged to prepare a DU CSR A No You can choose whether to forward the information to your own supplier prepare a DU CSR or leave it to your customers to do their own DU CSR See Chapter 35 of the Guidance for Downstream Users for more information
Question Box 1 General questions on DU CSR
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report14
3 Gather necessary information
Regardless of the approach you use you need to identify the uses to be assessed and gather information on the substance This chapter outlines some things to consider when you are gathering substance information It also describes what to do if you receive different information from different suppliers and where you can find more information if needed
31 COMPILE THE INFORMATION
The information you need on your substance and the complexity of the assessment depends on the approach chosen
For Approach A (Supplier exposure scenario) the information needed can be as little as the physical form vapour pressure and concentration of the substance You are likely to need information on the physical and chemical properties if you intend to estimate the exposure by modelling and also to check you are within the boundaries of Approach B (Sector exposure scenario) Approach C (Own exposure scenario) generally requires the most comprehensive information and this will depend on the complexity of the assessment
In all cases you may need to refer to substance classification to support conclusions when a quantitative assessment is not possible
The primary source of information is the safety data sheet (SDS) provided by your supplier The downstream user can accept the information provided However it is advisable to consult other sources if the safety data sheet does not follow the format of REACH Annex II is inconsistent or is incomplete The key sections to consult in the SDS in particular for Approach C (Own exposure scenario) are as follows
bull Section 1 and 3 for the identification of the substancemixture
bull Section 2 for the classification of the substance
bull If you are preparing a DU CSR for a substance in a mixture keep in mind that a DU CSR is not required below specified concentrations1
bull Section 8 for control parameters (exposure limit values)
bull As you have been provided with exposure scenarios you should also have been provided with DNELPNEC values (unless the substance is a non-threshold substances such as an irritant or carcinogen In such cases DNELPNEC values are not provided)
bull DNEL values should be provided in the SDS for all relevant routes of exposure (inhalation dermal and oral) and for all relevant populations exposed to the substance (workers and consumers)
bull The PNECs provided (aquatic sediment soil and air) indicate the environmental compartments that need to be considered in your assessment
1 If the substance is contained in a mixture in a concentration below the concentration limit that needs to be taken into account in classifying the mixture as hazardous (see Box Tip 3 and Article 14(2) of REACH)
i
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 15
bull If relevant DNELPNEC values are not provided you can contact your supplier or consult alternative sources (see Chapter 33 and 34)
bull Section 9 for information on the physical and chemical properties
bull This information may be relevant as part of the exposure scenario building and exposure estimation
bull Sections 11 and 12 for toxicological and ecotoxicological information respectively
Internal consistency between these sections of the SDS can indicate whether the information is likely to be reliable You should also check for consistency between the exposure scenarios and the main body of the SDS Contact your supplier if the information you receive is incomplete or inconsistent and see TIP Box 5 for advice when contacting your supplier
Experience to date is that the required information is not always conveyed or not conveyed precisely enough in existing SDSs and exposure scenarios Potential solutions to resolve these issues are currently being developed under the CSRES Roadmap2
32 DIFFERENT INFORMATION FROM DIFFERENT SUPPLIERS
If you purchase a substance from different suppliers you may receive different information from these different suppliers If so you should first verify that the safety data sheets you have received are for the same substance with the same impuritiescomposition If they are but there are significant differences in information contact your suppliers to inform them of the differences asking them to align if possible
If your suppliers do not provide aligned information you need to consider carefully which information is appropriate for your assessment It may be necessary to seek expert ad-vice or other sources of information when deciding
Regarding classification if there is a harmonised classification you are required to use that classification However be aware that there may also be other hazard classes not covered by the harmonised classification which should also be included If your classification of a substance is different to all of your suppliers you are required to report to ECHA3
2 httpechaeuropaeucsr-es-roadmap3 httpechaeuropaeusupportdossier-submission-toolsreach-itsubmitting-a-downstream-user-report-classification-differences
bull Be precise about the reasons for queryrejection
bull Where possible give regulatory reference (eg REACH Annex II ECHA SDS Guidance etc)
bull Confirm any agreements or additional data in writing
bull Ask for a revised SDSES if appropriate
bull Follow up on agreed actions agree a time limit and document your actions
Tip Box 5 Be aware of your responsibilities
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report16
33 SOURCES OF INFORMATION
If the information available in the SDS is insufficient or inconsistent you can use information from a range of other sources such as those described below when you prepare your DU CSR The type of substance-related information you require could include the classification exposure limits and the physical and chemical properties Some information such as the molecular weight of UVCB substances may be difficult to establish and you may need to seek advice on how to address such problems
The ECHA website provides a substantial amount of information on substances4 which has been gathered from the registration process and from notifications of substance classification
The ECHA database on registered substances contains publicly available information from the registration dossiers submitted to ECHA such as physical and chemical properties and hazard information and includes DNELsPNECs
The Classification and Labelling Inventory on the ECHA website contains all harmonised classifications as well as CampL information received from manufacturers and importers on notified and registered substances
The information in these databases is provided by registrants and suppliers and has not been verified by ECHA
Other public sources of information include the OECD eChemPortal5 and Gestis6
If information is provided by your supplier but you use an alternative source for that information this decision should be taken by a competent person You need to justify the decision and assure yourself of the adequacy and appropriateness of any information you use The information you use and the sources should be clearly indicated in the DU CSR
34 EXPOSURE LIMIT VALUES
The exposure limit value you use is very important as it is the reference value for assessing whether the risk is controlled
You are recommended to use the DNELPNEC provided in the SDS by the supplier Alternatively the DNELPNECs assigned by other registrants are provided in the sources referred to in Chapter 33 above and may be appropriate to use
In accordance with ECHA guidance7 when an EU indicative occupational exposure limit value (IOELV) exists you may use the IOELV in place of a DNEL for the same exposure route and duration unless new scientific information is available which indicates that the IOELV does not provide the appropriate level of protection required by REACH
ECHA guidance also states that you cannot use a national occupational exposure limit value (OELV) or binding OELV (BOELV) in place of a DNEL without an evaluation of the scientific background for setting the OELVBOELV
4 httpechaeuropaeuinformation-on-chemicals5 httpwwwechemportalorg6 httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank7 See Appendix 13 in of Chapter R8 of the IRampCSA Guidance
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 17
If a substance is restricted and an exposure limit value is referred to in the restriction conditions this exposure limit value must be used in the DU CSR if applicable
Certain substances such as irritants and carcinogens may not have a DNEL assigned for a given health effect because it has not been possible to establish a ldquothresholdrdquo In such cases a qualitative approach must be taken This may also apply to local effects When there is no limit value you need to justify why your conditions of use are adequate to control the risk This is described in Chapter 66 on risk characterisation
Note that there is no DNEL for exposure of eyes and the approach is always qualitative Classification for hazards to eyes can be used together with the concentration to check whether certain eye protection is required
bull You are responsible for the correctness of the CSA you undertake and its conclusions You need to
bull ensure the information you use is reliable and trustworthy and
bull document the source of information in the DU CSR
bull If you have new information regarding the hazard properties of the substance or other information that calls into question the appropriateness of the risk management measures identified in the safety data sheet REACH requires that you communicate this information to your supplier
bull The hazard of the substance may change in your use for example if it is in a different physical form or it reacts on use If so you may need to refine your hazard assessment See Chapter 63
Tip Box 6 Be aware of your responsibilities
Go to Chapter 63 if you think you may need to refine your hazard assessment
Chapters 4 5 and 6 describe the three main approaches for performing a DU CSA that were outlined here You can read about each approach to see which suits you best or go directly to the approach you intend to use
Next steps
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report18
4 APPROACH A SUPPLIER EXPOSURE SCENARIO
The easiest way to prepare a DU CSR is to modify an exposure scenario provided by your supplier This approach can be used when your use is described in an exposure scenario you receive but your conditions of use differ It can be undertaken with the aid of easy-to-use recalculation tools
41 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use is described in the exposure scenarios you receive but
bull your conditions of use are different in one or more contributing scenarios
bull you have established that your use is not covered but the risk is still controlled
42 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM YOUR SUPPLIER
The main steps of the supplier exposure scenario approach are presented in Figure 3 This is a very straight-forward approach and the simplest described in this guide
The initial steps shown in Figure 3 are that you identify the uses to be assessed gather information and confirm that the information is appropriate You then modify the exposurecontributing scenario provided by your supplier to reflect your actual conditions of use
Next you estimate the exposure for your conditions of use andor the corresponding risk characterisation ratio (RCR = exposureexposure limit value) This can be done using a recalculation tool Alternatively you can use an exposure estimation model that is the same as that used by the registrant or follows the same algorithm
The competency required is typically that of an environmental health and safety (EHS) practitioner who can check exposure scenarios and undertake risk assessments as required by other EHS legislation and who can recognise when greater expertise is needed to undertake the chemical safety assessment
RECALCULATION TOOLS
Recalculation tools also referred to as scaling tools are used to show how changes in parameters such as the exposure duration concentration or the effectiveness of risk management measures affect the exposure
Recalculation tools can be used by a downstream user to check if the actual conditions of use are covered by the exposure scenario provided by the supplier also termed ldquoscalingrdquo When you use recalculation tools to check your use is covered you need to adhere to the boundaries specified by your supplier for a given exposure scenario For example your supplier may specify that you may not replace engineering controls with personal protective equipment You also need to adhere to boundaries that are described in the Guidance for Downstream Users8
8 Scaling options and how to apply them to checking your use is covered are described in detail in Chapter 4 and appendix 2 of the Guidance for Downstream Users
i
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 19
Recalculation tools can also be used to prepare a DU CSR when the changes are outside the specified boundaries of scaling Therefore you can modify all parameters included in the supplier exposure scenario and the exposure can be increased beyond the specified boundaries However the exposure must be below the DNELPNEC giving an RCR below 1 Depending on the tool it might be possible to incorporate the inputoutput of recalculation tools directly in your DU CSR
At the time of writing a recalculation tool is under development by Cefic termed ES Conformity Tool The tool can be used to perform the ES check and can also be used as a basis for a DU CSR if required This tool is based on the Ecetoc TRA model and can only be used for exposure scenarios that were developed using this exposure estimation model or tools based on it (such as EasyTRA)
Re-calculation tools generally require the exposure estimate andor RCR as input information If the tool requires such information but it is not provided contact your supplier for this information Alternatively use the exposure estimation tool used by your supplier or consider Approach C Own Exposure Scenario
An example of a DU CSR based on the supplier exposure scenario approach and using the Cefic ES Conformity Tool is given in Appendix 1
EXPOSURE ESTIMATION TOOLS
An alternative to a recalculation tool is to estimate the exposure using the same exposure estimation tool (model) as used by your supplier or a tool that follows the same algorithm
Exposure estimation tools include ECETOC TRA EMKG Stoffenmanager ART EUSES etc and are described further in Chapter 65 on exposure estimation in the ldquoDownstream User Exposure Scenariordquo approach These tools should be used according to generally agreed rules andor specific advice and boundaries Chesar and ES-modifier are software tools that incorporate andor allow input from a number of exposure tools
If you use a different exposure estimation tool than your supplier use measured data or substantially change the parameters in the exposure scenario you are moving from Approach A towards Approach C (Own exposure scenario) This is described in Chapter 6 There is some overlap between these approaches in particular when you use a supplier exposure scenario as a basis for generating your own exposure scenario in Approach C
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report20
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not covered by the supplier exposure scenariocontrib-uting scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance information (eg physical formvapour pressure-dustiness) provided by your supplier
Check that the information available is sucient to run the recalculation or exposure estimation tool used
Gather information from additional sources if necessary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Use the supplier exposure scenario as a starting point
Enter the values for actual conditions of use for all relevant determinants in the tool used
If using a recalculation tool enter also the values for the conditions of use from the supplier ES
Estimate the exposure andor the RCR using
a suitable recalculation tool or
the exposure estimation tool used by your supplier (or one based on the same algorithm)
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1
Advice on how to document your DU CSR is given in Chapter 7An example of a DU CSR based on this approach is given in Appendix 1
Determine the risk characterisation ratio (RCR) and establish if it is below 1 (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the conditions of use (operational conditions and risk management measures) at your siteyour customer site are equivalent or more stringent than in the supplier exposure scenario and appropriate to the classication of the substance For more informa-tion see Chapter 66
Figure 3 Main steps in Approach A Supplier Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 21
5 APPROACH B SECTOR EXPOSURE SCENARIO
This approach is typically used when the supplier exposure scenario approach is not applicable and an appropriate generic assessment is available from a sector organisation
51 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
bull An exposure scenariocontributing scenario is available from a sector organisation that
bull describes the conditions of use that ensure control of risk
bull reflects your actual conditions of use
bull includes exposure estimates and applicability domain
52 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS FROM A SECTOR ORGANISATION
Several industry sector organisations and companies have developed exposure scenarios for typical uses within their sector These describe how certain mixtures and substances can be safely used in the applications considered to be relevant for that sector by means of a standard set of conditions of use ie operational conditions and risk management measures
Such generic exposure scenarios have been developed to provide information on uses and use conditions to registrants and to communicate to downstream users in sector-specific terminology
A similar approach can be used as a basis for a DU CSR and is under development The sector organisation or company would provide the appropriate exposure scenario and define the boundaries that apply (such as vapour pressure dustiness limit values classifi-cation water solubility etc) They also provide estimates of the exposure within this ap-plicability domain for the contribution scenarios within the exposure scenario and may also provide an outline report
In some cases such assessments would be based on sector-specific knowledge such as when the potential risks of a substance reduce when in a typical mixture
The main steps of the sector exposure scenario approach are presented in Figure 4 but these may vary depending on the information provided by the sector organisation The initial steps are generally that you identify the uses to be assessed and gather all relevant information from your supplier (eg physicalchemical properties DNELPNEC and other hazard information) and are satisfied it is appropriate
You then select the sector exposure scenario (with relevant details) you need as the basis for your DU CSR This exposure scenario includes the conditions of safe use that were determined at sector level As these conditions reflect good practice for the majority of substances in use in your sector it is likely that the properties of the substance to be as-sessed fall into the applicability domain of the relevant sector exposure scenario and the conditions of use reflect those that exist at the downstream user site However it is important that you check and demonstrate this
i
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report22
An advantage of this approach is that you do not need to perform the exposure estimation yourself as this has been determined by the sector association However it is your responsibility to choose the appropriate exposure scenario and to check your substance and conditions of use meet the boundary conditions defined in the sector exposure scenario Otherwise the exposure estimate may not be applicable and you should prepare your DU CSR using Approach C (Own exposure scenario) It is also your responsibility to report to ECHA as described in Chapter 9
At the time of writing this Practical Guide several downstream user industry sector associations are in the process of developing this approach Consult sector websites for fur-ther information9
The competencies required to apply this approach are typically those of environmental health and safety (EHS) practitioners who can interpret and apply the information contained in the exposure scenarios to their workplace and undertake risk assessments as required by other EHS legislation and recognise when greater expertise is needed
9 httpwwwducceu is a useful central source of information relating to industry activity
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 23
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenario-contributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
Conrm that the hazard information provided is appropriate
Identify a sector exposure scenario that describes your use and conditions of use
Conrm that the applicability domain of the sector exposure scenario including substance properties and use conditions is appropriate for your scenario
Identify the exposure estimate provided by the sector organisation for that exposure scenario
In this approach the RCR is always lt1 However you must ensure that your substance properties and conditions of use are within the applicability domain of the sector exposure scenario
Advice on how to document your DU CSR is given in Chapter 7
A general example of a DU CSR is given in Appendix 1 Contact your sector organisation to see if a suitable template is available
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments conrm that the actual conditions of use (operational conditions and risk management measures) are equivalent or more stringent than in the sector exposure scenario and appropriate to the classication of the substance (Chapter 66)
Figure 4 Main steps in Approach B Sector Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4)
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report24
6 APPROACH C DOWNSTREAM USER EXPOSURE SCENARIO
This approach is a more comprehensive chemical safety assessment than the other two approaches described in this Practical Guide It is the most suitable option when your use is not described in the exposure scenarios you receive when a sector use scenario is not available andor when a more thorough assessment is warranted
This chapter describes the various steps involved An overview is given and then each element is described in detail
61 STARTING POINT
bull You receive exposure scenarios for the substance from your supplier
bull You establish that
bull Your use andor conditions of use are not covered in the exposurecontributing scenarios you receive
and one or more of the following situations apply
bull A more thorough assessment is warranted for example due to
bull the hazardous properties of the substances
bull the hazard information is insufficient or inappropriate
bull You want to estimate the exposure using measured data or a different exposure estimation tool than was used by your supplier
bull You want to keep your use confidential
bull Approaches A and B are not applicable
62 OVERVIEW OF APPROACH BASED ON EXPOSURE SCENARIOS GENERATED BY THE DOWNSTREAM USER
The main steps for this approach are presented in Figure 5 They are discussed in more detail in the following sections
The level of expertise required on the part of the person undertaking a DU chemical safety assessment based on this approach will depend on the complexity of the assessment If you are competent to undertake risk assessments to comply with regulatory environmental health and safety (EHS) requirements or have prepared CSRs for REACH registration purposes this is normally sufficient Greater expertise may be needed for more complex assessments when a hazard refinement is needed and for uses which potentially pose a higher risk
i
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 25
DocumentDU CSR
Check if risk iscontrolled
Characteriserisk
Estimateexposure
Modify exposurescenario
Gather information
Identify uses to be assessed
Identify your usesconditions of use that are not cov-ered by the supplier exposure scenariocon-tributing scenarios you have received
Establish the actual conditions of use
Gather the DNELPNEC and relevant substance infor-mation provided by your supplier
Gather information from additional sources if neces-sary (see Chapter 3)
If necessary rene the hazard assessment
See Chapter 63
Decide the scope of your exposure assessment according to the hazardsidentied in the SDS and your uses Generate exposure scenarios that cover your use and conditions of use
See Chapter 64
Estimate the exposure using measured or modelled data
If RCR gt1Reneiterate the assessment until the risk is controlledIf RCR lt1 Finalise the assessment
Advice on how to document your DU CSR is given in Chapter 7
An example of a DU CSR is given in Appendix 1
Determine the risk characterisation ratio (RCR) for each exposure route (The RCR is the ratio of the exposure to the DNEL or PNEC)
For qualitative assessments justify that the eects are avoided when implementing the exposure scenario and appropriate to the classication of the substance
See Chapter 66
Figure 5 Main steps in Approach C Own Exposure Scenario
Remember to communicate downstream report to ECHA and implement the conditions of use as necessary (TIP Box 4) You may already be familiar with some of the steps above Just go to those sections where you need more information
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report26
63 REFINE HAZARD ASSESSMENT
Advice on how you can gather information on substance properties is provided in Chapter 3 If for any reason you do not agree with the hazard information available and have failed to reach agreement with your supplier or the hazard of the substance changes in your use you may need to refine your hazard assessment as described here
If you consider that the hazard and PBT information reported in the safety data sheet supplied to you is appropriate you can use the relevant information supplied You donrsquot have to undertake any further hazard assessment or PBTvPvB assessment
One reason that the hazard assessment from your supplier may not be appropriate is when the hazard of the substances changes in your use Another reason may be that you do not agree with the hazard information available and you and your supplier do not align on the hazard assessment10
If either of these unusual situations arise you may wish to refine the hazard assessment You should carry out the relevant assessments in accordance with the requirements that apply to a registrant under REACH according to Annex XII to REACH
Some examples of when a refinement of the hazard assessment may be required include
bull If the substance is used in a different physical form or composition such as nanoparticles or purified substance
bull If a substance reacts on use (bleaching agent reactive dyes) or undergoes redox reaction hydrolysis microbiological transformation etc
bull If a DNELPNEC value is not provided for the target group that is relevant for your assessment For example you may want to derive a consumer DNEL from a worker DNEL
bull If a registrant did not undertake testing but it is relevant for the downstream user as exposure could occur that was not envisaged by the registrant11
As these examples illustrate the refinement may be relatively simple or complex A competent person should be consulted as necessary The guidance necessary to carry out a detailed hazard assessment is outside the scope of this practical guide12
64 SCOPE OF ASSESSMENT AND GENERATE EXPOSURE SCENARIOS
This section describes how you can generate an exposure scenario as part of a DU CSR for your use or your customerrsquos use of the substance
Before you generate exposure scenarios you first need to consider the scope of your assessment
10 Note that if you have new information on hazardous properties you are legally obliged to communicate it up the supply chain (Article 34)11 This is likely to be unusual but if you plan to undertake vertebrate testing you need to provide a testing proposal to ECHA12 For further information see the Guidance on IRampCSA (in particular Part B and related Chapters R2 to R10) Practical Guide 14 on ldquoHow to prepare toxicological summaries in IUCLID and how to derive DNELs and Sections 1 to 4 of Annex I to REACH
i
i
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 27
641 THE SCOPE OF THE EXPOSURE ASSESSMENT
You need to assess the risk for all the hazards that have been identified for the substance and all the life cycle stages that are relevant for each of the uses in your DU CSR ECHA guidance identifies three types of hazards that require exposure assessment
1) hazards for which the substance is classified13
2) hazards for which there are classification criteria14 and there is information showing that the substance does have these hazard properties but the severity of the effects is lower than the criteria for classification and so the substance is not classified
3) hazards for which currently no classification criteria exist but there is information to show that the substance has such hazardous properties For example this could be for environmental hazards related to soilsediment or air
When deciding on the scope of your assessment also consider if your site-based risk assessments conducted for other compliance purposes have identified any additional concerns which you should include in your assessment It may also help to look at the scope of exposure scenarios from the supplier for other uses of that substance
642 ENVIRONMENTAL ASSESSMENT
You need to assess the risk with respect to the environment if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to aquatic hazard orbull the substance is PBTvPvB or
bull the substance is classified with respect to hazards other than environmental hazards for which you have to undertake an assessment and PNECs have been derived from ecotoxicity data showing effects in aquatic organisms or in soilsediment dwelling organisms although they do not lead to classification
643 HUMAN HEALTH ASSESSMENT
You need to assess the risk with respect to human health if your use is not covered by the supplier and any of the following conditions apply
bull the substance is classified with respect to human health hazards or
bull the substance is classified with respect to hazards other than human health hazards for which you have to undertake an assessment and adverse effects have been observed in human health toxicity studies although they do not lead to classification (For example DNELs may be assigned or information in Section 11 of the SDS or other sources would trigger concern)
Aspects you need to consider include
13 According to Article 14(4) of REACH14 See Guidance on IRampCSA Part B Section B8
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report28
bull Who is likely to be exposed workers andor consumers
bull What are the routes of exposure (inhalation dermal and for consumers only the oral route)
644 GENERATING EXPOSURE SCENARIOS
Exposure scenarios describe the conditions under which a hazardous substance can be used for the given scenario such that the risk is considered adequately controlled When you prepare a DU CSR you need to generate exposurecontributing scenarios for the uses of the substance you are assessing
When you are preparing the chemical safety assessment for your own use the conditions of use are usually exactly those conditions that occur on your site When you are preparing the chemical safety assessment for your customer use the conditions of use should reflect those conditions that actually occur on their site or are feasible to implement See Appendix 3 for more information on selecting risk management measures
A number of sources may help you generate your exposure scenario These include exposure scenarios you receive from your suppliers for similar uses use maps or generic exposure scenarios provided by your sector organisation and the scenarios embedded in exposure estimation tools
If you are assessing worker or consumer uses contact your sector organisation to establish if SWEDs or SCEDs are available respectively SWEDs are sector-specific worker exposure descriptions and are under development at the time of writing It is intended that they will document typical conditions of use for workers SCEDs are specific consumer exposure determinants and document typical conditions of use of consumer products SWEDs and SCEDs are intended to represent realistic assumptions and the determinants are expressed in a form that can be easily input into the commonly applied exposure assessment tools
If you are assessing environmental exposure and using modelling tools be aware that the environmental release categories (ERCs) incorporated in some modelling tools may overestimate the release from industrial sources If so refine the releases to environment using literature sources relevant sector-specific ERCs (termed SPERCs) or site-based information as appropriate
If you are providing the exposure scenario to customers you are strongly recommended to use the format for the exposure scenario agreed by industry and the authorities15 You should always communicate relevant conditions of use to your customer in a way that is readily understood See Chapter 8 for further information
65 ESTIMATE THE EXPOSURE
You can estimate the exposure using measured data or exposure modelling The method and the modelling tool you use to estimate the exposure will depend on aspects such as the information available to you limitations imposed by the use or by the substance and your current practices This section describes the main considerations
Aspects to consider when you use measured data and modelling tools to estimate exposure are presented in Tables 2 and 3 respectively In general it is recommended that you use the method you are familiar with such as one you currently use for site-based risk assessments if it is applicable
15 httpechaeuropaeusupportpractical-examples-of-exposure-scenarios
i
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 29
EXPOSURE ESTIMATION USING MEASURED DATA
Possible sourcesYou may have measured releasesexposures to demonstrate compliance with the Chemicals Agents Directive Industrial Emissions Directive or other relevant EU-EHS or local legislation or for other corporate requirements Or you may have access to suitable databases
Suitability
Measured data is suitable when you have sufficient and adequate measured data for the substance and use of interest that is reliable representative and relevant It is likely to be personal exposure data possibly including supporting information obtained by biological monitoring Static workplace measurements may be suitable if they are likely to represent worker exposure
LimitationMeasured data is not suitable when you do not have sufficient and adequate data that reflect the conditions of the exposure scenario The data is not suita-ble if the conditions of use during measurement provide less control of risk than the conditions you specify in your ES
Ease of useStraightforward when the measured data is considered of high relevance and directly applicable More challenging when selecting relevant data using data-bases or when extrapolating data from analogoussurrogate measurements
Expertise required
Moderate to high Expertise is required to select appropriate data to deter-mine what is sufficient to interpret the data and to extrapolate from the data if necessary and appropriate experience in measurement andor interpreting measured data is necessary Detailed advice on how to interpret measured data is beyond the scope of this practical guide If you undertake this task you will need to have competence in this area
Tip If your measured data is not sufficient to base your assessment on perhaps it can still be used to support the output of exposure modelling
Word of caution
A measurement or risk assessment report conducted for environmental or health and safety compliance purposes can often form the basis of a DU CSR However because a CSR under REACH must characterise the risk by comparison of the exposure with the DNELPNEC (or qualitatively if appropriate) it is not normally possible to use such reports directly as a DU CSR There are also specific requirements on documentation of a DU CSR as described in Chapter 7
Further info
Guidance on evaluating the quality and suitability of measured data is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (both of which are under review at the time of writing)
Table 2 Exposure estimation using measured data
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report30
EXPOSURE ESTIMATION USING MODELLING TOOLS
Possible sources Tools which are publically available are presented in Table 4
SuitabilityModelling tools are suitable for many situations including when you have no ad-equate measured data when you are assessing uses further downstream when you are experienced in using exposure models
Limitation Modelling tools are not suitable when the use is outside the stated domain of applicability of the exposure model
Ease of use Depends on the model and existing knowledgeexperience in using them
Expertise requiredModerate to high depending on model and scenario Instruction on how to use the various exposure estimation tools is outside the scope of this practical guide
Tip
A suitable tool is one that is fit for the task from a scientific perspective and which you find convenient to use If you are already competent in using a particu-lar tool use that tool if it is appropriateIf you have limited experience in exposure modelling it may be more practicable to use external expertise However developing the capacity in-house may sup-port site risk assessment for other safety and compliance purposes and allow you to compare model outputs with your own experience
Another Tip
It may be appropriate to adjust the modelled estimate based on knowledge of the actual release rates For example when a substance is used as a reactive diluent a significant proportion of the diluent may be incorporated in the matrix resulting in release of less substance than initially estimated Consequently there is less exposure than might normally be expected and the exposure estimate can be amended accordingly if this can be justified
Word of caution
The user is responsible for the correct and appropriate use of any tool The use and the conditions of use must be within the domain of reliable applicability of the exposure tool being used
Further info
Information is provided on the websites of the tool providers (see Table 4) Guidance on modelling tools is provided in ECHA Guidance R14 ldquoOccupational Exposure Estimationrdquo ECHA Guidance R15 ldquoConsumer Exposure Estimationrdquo and ECHA Guidance R16 ldquoEnvironmental Exposure Estimationrdquo (all of which are under review at the time of writing)
Table 3 Exposure estimation using modelling tools
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 31
MODEL NAME OWNER DESCRIPTION CATEGORY LINK TO WEBSITE
ART TNP Advanced worker inhalation exposure assessment worker httpwwadvanced-
reachtoolcom
ConsExpo RIVM Exposure assessment of compounds in non-food consumer products consumer httpwwwconsexpo
nl
EMKG- EXPTOOL BAUA
Quantitative tier 1 assessment of occupational exposure (inhalation) to hazardous substances
workerhttpwwwreach-clphelpdeskdeenExposureExpo-surehtm
ES modifier
DHI group
Model developed mainly for Down-stream users needing to check and modify the REACH Exposure Scenario received from their suppliers
worker consumer environment
httpesmodifierdhigroupcomIndholdhtm
EUSES EC-JRC
EUSES is a decision support instrument to carry out assessments of the general risks of industrial chemicals and bioc-ides posed by substances to man and the environment
environmenr man via environment
httpihcpjrceceuro-paeuour_activitiespublichealthrisk_as-sessment_of_Biocideseuses
MEASE Euro-metaux
1st tier screening tool for the estima-tion of occupational inhalation and der-mal exposure to metals and inorganic substances based in TRAEASE(Herag)
workerhttpwwwebrcdetoolsmeasephp
RiskOfDerm TNO Worker potential dermal exposure assessment
worker httpwwwtnonl
Stoffenmanager Cosanta BV
Control banding for worker dermal and inhalation exposure and quantitative exposure assessment for worker inhalation exposure
worker httpwwwstoffenmanagernl
TRA EcetocModel developed mainly for chemical safety assessment for REACH registration
worker consumer environment
httpwwwecetocorgtra
WPEM US-EPAE stimates the potential exposure of consumers and workers to the chemicals emitted from wall paint
consumer workerhttpwwwepagovopptintrexposurepubswpemhtm
Source Extract from Table 1 of OECD report ENVJMMONO(2012)37 with amendments Models indicated by were added for completeness A more comprehensive overview of consumer exposure tools in included in ECHA Guidance IR amp CSR R15
Table 4 Exposure estimation modelling tools
Note ECHA has developed a software tool to assist registrants in preparing a chemical safety report (CSR) called Chesar The current version Chesar version 2 does not support the preparation of downstream user chemical safety re-ports Nevertheless it can be used by downstream users who are familiar with IUCLID and Chesar and who have access to the IUCLID dossier of the substance of interest (The export file that can be generated from IUCLID includes the informa-tion necessary for exposure assessment using the main modelling tools used)
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report32
66 CHARACTERISE THE RISK
This section describes the ways in which you can characterise the risk to make sure the risk is controlled
When you have estimated the exposure you need to characterise the risk to demonstrate control The type of risk characterisation can be quantitative semi-quantitative or qualitative The type of risk characterisation you use is determined by the outcome of the hazard assessment namely whether or not you have a threshold value at which an effect is observed This is illustrated in Figure 6 and the different types of risk characterisations are described further here
i
Figure 6 Overview of principle types of risk characterisation
Hazard Assessment Outcome Risk Characterisation Type Risk Characterisation
DNEL orPNEC
DMEL
No threshold available or PBT vPvB
Quantitative
Semi-quantitative
Qualitative
RCR lt 1
RCR lt 1 amp justification
Justification that effects likely to be
avoided
661 QUANTITATIVE RISK CHARACTERISATION
A quantitative risk characterisation is undertaken if derived no effect levels (DNELs) or predicted no effect concentrations (PNECs) are available Divide the exposure estimate by the corresponding DNEL or PNEC to get the risk characterisation ratio (RCR)
RCR = exposure estimateDNEL (or PNEC)
Ensure that the RCR is below 1 If not repeat the assessment with more stringent conditions of use until the RCR is below 1
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 33
662 SEMI-QUANTITATIVE RISK CHARACTERISATION
Semi-quantitative risk characterisations are usually undertaken when it is not possible to establish a ldquono effectrdquo level but it is possible to establish a level at which there is minimal effect In such cases the conclusion of the hazard assessment is a derived minimal effect level (DMEL) rather than a DNEL Examples of substances where this applies are some carcinogens and mutagens and it applies only to human health effects
A semi-quantitative risk assessment is a combination of a quantitative and qualitative assessment approach Divide the exposure estimate by the DMEL to get the risk characterisation ratio (RCR) Control of risk is demonstrated if the risk characterisation ratio (RCR) is below 1 and additional justification is provided to demonstrate that the proposed control measures described in the exposure scenarios minimise the exposure
In some cases it may be possible to establish dose-response relationships for some non-threshold CMR substances These are quantitative relationships that calculate ldquoexcess riskrdquo associated with a given level of exposure Risk characterisation can be based on such a relationship usually together with justification that the excess risk is acceptable
663 QUALITATIVE RISK CHARACTERISATION
Qualitative risk assessments are undertaken when a DNELDMEL or PNEC cannot be established This arises when it is not possible to identify a threshold below which adverse effects are not observed It often applies to sensitisers irritantscorrosives non-threshold CMR substances and PBTvPvB substances and always applies to the potential for damage to eyes
A qualitative assessment differs from a quantitative or semi-quantitative assessment in that you cannot quantify the risk in the form of an RCR Therefore you must provide robust justification to support the conclusion that the operational conditions and risk management measures described in the exposure scenario are sufficient to avoid adverse health or environmental effects You should propose steps to avoid the exposure when the substances are of high hazard such as CMRs sensitisers or PBTvPvB substances
It is sometimes appropriate to support a quantitative risk assessment with a qualitative risk assessment One situation where this often applies is for dermal exposure Quantitative assessment of dermal exposure is required when a systemic DNEL is available yet the limitations of dermal exposure estimation are recognised Consequently it is recommended to also evaluate the outcome from a qualitative standpoint to ensure the risk management measures are appropriate Generally the workplace risk management measures implemented to control dermal exposure aim to prevent exposure as far as possible
Qualitative assessments for workplace exposure are sometimes undertaken using control banding Control banding tools include COSHH Essentials16 and EMKG17 For further information see Practical Guide 15 ldquoHow to undertake a qualitative human health assessment and document in a CSRrdquo and Part E of the Guidance on IRampCSA
16 httpwwwcoshh-essentialsorguk17 BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report34
664 COMBINED RISK
You also need to consider the combined risk if appropriate For example a worker handling a substance with a systemic health effect may be exposed both by the inhalation and the dermal route If so the RCR for both routes should be summed (Note that you consider acute and chronic effects separately)
You must repeat the assessment with more stringent conditions of use if the summed RCR is above 1 or a qualitative assessment indicates that the risk may be not controlled
7 DOCUMENT THE DU CSR
This chapter outlines the information that should be documented in a DU CSR and the format that should be followed
According to Annex XII to REACH a chemical safety report prepared by a downstream user should consist of Part A and Part B as outlined below Part B uses the format set out in Annex I to REACH (for registrant CSR) The downstream user should include exposure assessment and risk characterisation (sections 9 and 10) and the other sections if appropriate
Part A
A Declaration that the downstream users implement the risk management measures outlined in the relevant exposure scenarios for their own uses
B Declaration that the downstream users communicate the risk management measures outlined in the relevant exposure scenarios for the identified uses further down the supply chain
Part B
i Appropriate information andor reference to sources of information relating to
A The identity of the substance and physicalchemical properties
B The use(s) being covered by the DU CSR
C Classification and labelling
D Environmental and human health hazard assessments
ii Exposure assessment and risk characterisation
The extent of the documentation will depend on the complexity of the DU CSR as indicated in TIP Box 7 The main section headings of the CSR format that are set out in Annex I to REACH are presented in Table 5 Those sections that are likely to be included in a DU CSR and under which circumstances are also indicated in Table 5
Examples of different DU CSRs are provided in Appendix 1 and possible questions are addressed in Question Box 2
i
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 35
bull Keep the report simple especially when your assessment is straightforward When it is complex make sure the report clearly describes all the issues
bull Approach ASupplier Exposure Scenario the re-calculation tool may provide all relevant aspects of documentation
bull Approach BSector Exposure Scenario the sector may provide a report template with the other information
bull Approach COwn Exposure Scenario the documentation is likely to be more comprehensive and should be sufficient to present the chemical safety assessment clearly
Tip Box 7 Keep the report proportionate
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report36
CSR REPORT FORMAT SECTION HEADING INCLUSION IN DU CSR
1 Identity of the substance and physical and chemical properties Usually included May refer to SDS
2 Manufacture and uses USES usually included Manufacture applicable only to registrants (note that formulation is a use not manufacture)
3 Classification and labelling Usually included May refer to SDS Labelling not normally relevant to include
4 Environmental fate properties
Included as appropriate to indicate information sourced from SDS from alternative sources or if new hazard assessment was undertaken (Approach C)
5 Human health hazard assessment
6 Human health hazard assessment of physico-chemical properties
7 Environment hazard assessment
8 PBT and vPvB assessment
9 Exposure assessment91 (Title of exposure scenario 1) 911 Exposure scenario 912 Exposure estimation 92 (Title of exposure scenario 2) 921 Exposure scenario 922 Exposure estimation (etc)
Always included with sub-headings as appropriate The risk char-acterisation for each exposure scenariocontributing scenario is also provided here
10 Risk characterisation101 (Title of exposure scenario 1) 1011 Human health 10111 Workers 10112 Consumers 10113 Indirect exposure to humans via the environment 1012 Environment 10121 Aquatic compartment (including sediment) 10122 Terrestrial compartment 10123 Atmospheric compartment 10124 Microbiological activity in sewage treatment systems (etc)
Included when it is appropriate to characterise the risk for com-binedaggregated uses across different uses assess
Note the documentation will vary with the approach used and be most detailed with Approach C
Table 5 Main section headings of Part B of the CSR format (adapted from Annex I to REACH) and their relevance for inclusion in a DU CSR
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 37
8 COMMUNICATING TO CUSTOMERS
This chapter applies to you only if
bull You are supplying the substance onwards and bull You are required to provide a safety data sheet and bull you have undertaken a DU CSR for your customer use
When you have prepared a DU CSR for a customer use and you are required to provide an SDS for the substance (as such or in a mixture) you also need to provide your customers with any relevant exposure scenarioscontributing scenarios for their use for which you prepared a DU CSR You should place the relevant exposure scenarios for the substances assessed in an annex to the safety data sheet
When supplying a mixture you may also choose to provide consolidated safe use information for the mixture in addition to the substance ES you are required to provide Your sector organisation may have developed generic safe use of mixtures information (SUMI) sheets which you can use or adapt Make sure that the information contained in the SDS and SUMI (if provided) is consistent with the exposure scenario
The exposure scenario should be provided in an official language of the Member State of the recipient in the same way as a safety data sheet It is recommended that you use ESCom Phrases18 where available and the format for the exposure scenario that has been agreed by industry and the authorities19 This is based on four sections namely
1 Title
The title section gives an overview of all the tasksactivities covered by the ES It typically gives a short description of the scope of the ES and lists the tasksactivities (or rdquocontributing scenariosrdquo) covered by the ES This listing is most often based on the Use Descriptor System (PROCs PCs ERCs etc)20
2 Conditions of use affecting exposure
This essential section is the core of the ES as it describes the conditions of use (operational conditions (OCs) and risk management measures (RMMs)) for each taskcontributing scenario you are assessing This should be clearly described with all the necessary information for safe use by your customer
3 Exposure estimate and reference to its source
This section of the exposure scenario documents the estimation method used in the assessment It presents the exposure estimate and the risk characterisation If your customers are end users include this information only if it is relevant for them
4 Guidance for Downstream Users
This section can be used to provide information to customers that may be helpful to them when comparing their actual conditions of use with those in the ES For example it could refer to information on scaling Include this section if you supply to downstream users who also supply further downstream Otherwise it is not normally relevant
18 httpwwwceficorgIndustry-supportImplementing-reachescom19 httpechaeuropaeuregulationsreachdownstream-usersexposure-scenarios20 httpechaeuropaeudocuments1016213632information_requirements_r12_enpdf
i
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report38
9 REPORTING TO ECHA
The REACH Regulation requires that you report to ECHA when you intend to prepare a DU CSR or if you are exempt from preparing a DU CSR The reporting required is explained in this chapter
You are obliged to report to ECHA if you are preparing a DU CSR unless your particular use is less than one tonne per year
You also have to report to ECHA if you are exempt from preparing a DU CSR because
bull You use the substance in total quantities below 1 tonne per year or
bull You use the substance for Product and Process Orientated Research and Development (PPORD)
The reporting requirements are specified in Article 38 of REACH and summarised in Table 6 The information to be reported includes aspects such as identification details of the downstream user and the supplier (for the use not covered) the substance and a brief general description of the use and conditions of use This information is used to support decision making at various stages in regulatory risk management processes You do not have to send the DU CSR itself to ECHA
A downstream user can report to ECHA by using a user-friendly webform or for users familiar with IUCLID through REACH-IT Detailed information on how to provide a downstream user report is available on the ECHA website21
21 httpechaeuropaeuregulationsreachdownstream-usersdownstream-user-reports
i
Q Do I have to write my DU CSR in English A No You can write it in any official EU language of choice If you are required to send exposure scenarios to customers they must be provided in an official language of the Member State of the recipient (see Chapter 8)
Q Do I have to submit my DU CSR to ECHA A No You do not submit the actual DU CSR but make it available to enforcement authorities on request However in most cases you have to inform ECHA that you have undertaken a DU CSR See Chapter 9 for details
Q Do I have to keep a copy of the supplierrsquos SDS together with my DU CSR A It is advisable to do so The DU CSR should also include a clear reference to the version and date of any SDS used as well as to the name of supplier The sources of any other information used should also be given
Q How long do I have to keep records A You are obliged to keep the information required to carry out your DU CSR for at least 10 years after you last supply or use the substance or mixture (Article 36)
Question Box 2 Questions on Documentation
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 39
TOTAL USE (TONNES PER YEAR)
PARTICULAR USE (TONNES PER YEAR)
IS IT USED FOR PPORD
A DU CSR IS REQUIRED BY ARTICLE 37(4)
NEED TO REPORT TO ECHA
gt1 gt1 no yes yes
gt1 lt1 no yes no (particular use lt1 tonneyear)
lt1 lt1 no exempt (lt1 tonneyear) yes
gt1 gt1 yes exempt (PPORD) yes
In the unusual event that you intend to perform additional testing on vertebrate animals as part of a DU CSR hazard refinement you must submit a proposal to ECHA Testing cannot proceed before agreement is received from ECHA
Table 6 Overview of reporting requirement
bull Make sure you complete the necessary actions within the regulatory timeframe
bull You have six months to inform ECHA from the moment you receive a safety data sheet of the substance containing a registration number for which there is no ES that covers your use
bull You have 12 months in which to complete the necessary action such as preparing the DU CSR
bull Implement appropriate provisional risk management measures if necessary
Tip Box 8 Know how much time you have
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report40
Appendix 1 Examples of a DU CSR
Examples of a DU CSR are presented in the following pages The examples are based on an imaginary substance called ECHA Substance which has been used in other examples produced by ECHA The safety data sheet can be seen in the ECHA e-Guide on SDSs22
The examples are all for the same scenario which is worker exposure for a dipping process on the downstream userrsquos own site The activity takes place with good general ventilation without personal protective equipment and for a duration of up to four hours per shift Environmental or consumer assessments are not illustrated but would be prepared in a similar way
In the examples the necessary substance information was provided by the supplier and a refinement of the hazard was not required The relevant supplier contributing scenario is given in Appendix 2
Note that the irritancy effect cannot be addressed in a quantitative approach and is addressed qualitatively based on the concentration of the substance in the mixture and with reference to the substance and mixture classification
The examples are provided in the following order
Example 1 Cover page Example 2 Part A Example 3 Part B - Approach A Supplier exposure scenario Example 4 Part B - Approach C Own exposure scenario (measured data) Example 5 Part B - Approach C Own exposure scenario (modelled data)
22 e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
These examples are intended to illustrate the content of a DU CSR to assist downstream users DUs must make sure that the DU CSR is appropriate to the assessment
A DU CSR undertaken in compliance with the REACH Regulation does not replace or fulfil the obligations to undertake risk assessments under other national environmental and health and safety legislation
In this worked example an employer would be required under the Chemical Agent Directive to undertake a risk assessment of the worker that includes the combined exposure from different tasks and chemicals
Notes
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 41
Example 1 Cover page
The cover page can be adjusted to match in-house reporting styles An example is presented below
Downstream User Chemical Safety Report
[DUCompany_Name]
Report Report title Dipping process in Plant 3amp4 Reference F1234 Version 10 Prepared by Alice Bruno EHS Dept
Date prepared 29122015
Substance Name ECHA substance EC number CAS number
REACH registration no
Report to ECHA REACH-IT submission no
Notification date 01012015
End of Example 1
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report42
Example 2 Part A
Declaration that risk management measures are implemented DUCompany_Name declares that the risk management measures (RMMs) outlined in this chemical safety report are implemented by our company for our own uses
Declaration that risk management measures are communicated DUCompany_Name declares that the risk management measures outlined in the relevant exposure scenarios for the identified uses in this chemical safety report are communicated further down the supply chain
Statement on the hazard and PBTvPvB assessments reported in the safety data sheet supplied andor gathered from other sources of information DUCompany_Name assumes the hazard and PBTvPvB assessment conclusions reported in the safety data sheet of [supplier] version [number] date [date] andor the information on the hazard and PBTvPvB assessments gathered from other sources as documented in the CSR to be appropriate For this reason company [x] has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
End of Example 2
This paragraph is required only if you are communicating
further downstream
This paragraph is not mandatory but it is recommended
to include an appropriate statement either here or in part B Identify any ad-ditional sources used
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 43
CS for a Simplified Downstream User Chemical Safety ReporteSDS for Product X Main User Group 3
Supplier Substance name
Supplier Y ECHA substance
SU other information 1
16 xxxx
Substance CAS ES
1234-56-7 3
other information 2 ES name
yyyy Coatings amp lnks
Worker CS 5 Done by AB
Date 01-Sept-15
Operational Conditions and Risk Management Measures TRA version
Supplier 3
DU actual 3
Scenario name Process category (PROC)
Dipping PROC 13
Dipping PROC 13
Type of setting Is substance a solid
industrial No
industrial No
VP (Pa) at ambient or process temperature 10 10
Duration of activity [hoursday] gt 4 hours (default) 1 - 4 hours
Use of ventilation Indoors with LEV Indoors with good general ventilation
Use of respiratory protection No No
Substance in preparation 1 - 5 1 - 5
Dermal PPEGloves Consider LEV for dermal exposure
No No
No No
Approach A Exposure estimation Situation
Example 3 Part B - Approach A with Cefic ES conformity toolSupplier exposure scenario Cefic ES conformity tool You coat articles by dipping Your use (dipping) is described in the supplier contributing scenario but the conditions of use differ from those on site The received contributing scenario specifies LEV over a full shift In your case LEV is not used on site but good general ventilation is provided with an air change rate of 35ach-1 and exposure time is reduced
In this example it is assumed that you attachlink the safety data sheet to the DU CSR It may also help to attach the relevant exposurecontributing scenarios
A copy of relevant sections of any recalculation tool or exposure modelling tool may be sufficient to document the DU CSR together with the safety data sheet for the substance The report should be expanded where necessary to include qualitative assessment as illustrated here with respect to irritancy
Note this extract is for Part B only
PART B
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report44
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) Personal protective equipment is available for non routine intervention All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
End of Example 3 (supplier exposure scenario approach)
Exposure estimation
Long-term Inhalation Exposure 25 mgm3 105 mgm3
Long -term Dermal Exposure 27 mgkgbwday 27 mgkgbwday
Risk Characterisation
Risk Characterisation Ratio - Long-term Inhalation 01 042
Risk Characterisation Ratio - Long-term Dermal 039 039
Risk Characterisation Ratio - Long-term Total Exposure 049 081
Note this table is taken from the draft Cefic ES
Conformity Tool and amended to aid clarity Cells where the actual conditions of use differ from the supplierrsquos are highlighted in yellow The exposure and the RCR in the green highlighted cells are calculated values
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 45
CAS number 11111-11-1
CAS name ECHA Substance
IUPAC name ECHA Substance
Molecular formula CxHyOz
Molecular weight range ca 300
Vapour pressure 10 Pa
Description Monoconstituent substnace
Physical state at 20o C and 1013 hPa Liquid
Example 4 Part B - Approach C with measured dataApproach C Exposure estimation Situation
See Appendix 2 for the supplier ES for this example
This would normally be attached to the DU CSR
Own exposure scenarioMeasured dataYou coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You have measured data available from personal exposure monitoring over the previous three years
This example also illustrates a more narrative approach in the documentation in particular with respect to the exposure scenario The key substance information is included but the safety data sheet would normally be also attached to the DU CSR Note that this DU CSR is for the DU own site and is not being communicated onwards and hence standard phrasing or format is not a consideration
This extract is for Part B only
PART B
DUCompany_Name assumes the hazard and PBTvPvB assessments reported in the safety data sheet of [supplier] version 10 September 2014 andor the information on the hazard and PBTvPvB assessments gathered from other sources to be appropriate For this reason DUCompany_Name has used the relevant information reported by the supplier andor gathered from other sources for the risk characterisation for further risk assessment
All information is sourced from that safety data sheet unless otherwise specified
1 Substance information and hazardous properties
The identity of the substance and physicalchemical properties2 Uses being covered by DU CSR
Worker exposure during dipping process in Plants 3 amp 4
This use was described in the supplied exposure scenario ES2 General industrial use of coatings and inks Contributing Scenario 9 ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]23
23 ECHA Publication ldquoAn illustrative example of the exposure scenarios to be annexed to the safety data sheetrdquo
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report46
See example 5 of this DU CSR for DU CSR based on
modelled data and an exposure scenario based on the modelling tool
Plants 3 amp 4 Worker exposure scenario - dipping line
Product characteristics
The dipping solution in Tank 3 contains ECHA substance at a concentration of 3 - 4
Frequency and duration of exposure
The shift duration is 8 hours and workers may perform this task throughout half the shift
Technical and organisational conditions and measures
The dipping is undertaken on Lines 1 and 3 in accordance with Standard Operating Procedure 12345 The work pieces to be dipped are loaded onto racks by hand and lifted into the surface treatment line (at room temperature) using an overhead crane The rack is lowered and raised remotely into the tank The rack is moved automatically into a ventilated drying oven and then left to stand overnight
The work pieces are unloaded when fully dry There is no dermal contact with the substance in solution under normal operating conditions
There is no LEV on the dipping line but the air change rate in the production area is about 3 ach-1
Conditions and measures related to personal protection hygiene and health evaluation
The operators wear Tyvek suits Nitrile gloves and eye protection are available if any unintended contact is likely Good housekeeping practices are implemented There is regular inspection of workersrsquo skin as part of a site-wide health monitoring programme
The conditions of use differ from those on our site The received contributing scenario specifies local exhaust ventilation (LEV) We do not use LEV but we have good general ventilation with an air change rate of 3ach-1 as verified by weekly monitoring of ventilation system in accordance with our Standard Operating Procedure 1234 and ventilation of the drying oven Also the work duration per shift never exceeds 4 hours
3 Classification
H315 Causes skin irritationH319 Causes serious eye irritationH412 Harmful to aquatic life with long lasting effects
4 Human health hazard assessment
Control parametersDNEL values (workers)
Inhalation long-term systemic 25 mgmsup3Dermal long-term systemic 7 mgkg bwday 5 Exposure assessment
51 Plants 3 amp 4 Worker exposure scenario ndash dipping line
511 Exposure scenario
Table A2 - exposure scenario (for example based on measured data Note that this is for DUrsquos own use and will not be communicated downstream and is described in DUrsquos own words rather than standard phrases)
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 47
Year Report ref No of personal samples
Mean 8 hour TWA mgm3
Geometric standard deviation
90th percentile 8 hour TWA mgm3
2012 A-12345 9 027 20 056
2013 B-12345 7 020 19 041
2014 C-12345 9 018 27 045
Overall 25 022 23 049
512 Exposure estimation
The measured data is summarised in Table A3 The measured data is considered to be sufficient and reliable The data is from the dipping lines being assessed and the conditions of use have not changed since measurements were taken The measurement duration ranged from 150 to 220 minutes and represents the concentration in the worker breathing zone during routine operating conditions The exposure was determined as an 8 hour time weighted average (TWA) based on a shift exposure duration of 240 minutes
Table A3- example of measurement data
6 Risk characterisation
The mean 90th percentile 8 hour TWA is 049 mgm3 giving an RCR of 002 (04925) 24 This is well below 1 and the risk is considered to be controlled with respect to long-term inhalation exposure to ECHA substance
Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product The mixture is not classified for skin or eye irritation and no local effects are expected Furthermore the potential for dermal and eye contact is minimal due to automated transfer between dipping baths and forced air drying of parts before contact (enclosed system with LEV) All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled Personal protective equipment is provided for non routine intervention
END of Example 4 (own exposure scenario approach with measured data)
24 The 90th percentile is recommended in Guidance R14 for most situations The RCR is the ratio of the exposure estimate to the DNEL(or PNEC)
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report48
Example 5 Part B - Approach C with modelled dataApproach C Exposure estimation Situation
Own exposure scenarioModelled data using Ecetoc TRA v3You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
You coat articles by a dipping process The exposure scenarios you receive do not refer to coating at all You do not have measured data available and use modelled data
PART B
Sections 1 to 4 These are the same as shown in Example 4
5 Exposure assessment
51 General industrial use of coatings and inks ldquocontrol of worker exposure dipping immersion and pouringrdquo [PROC 13]
511 Exposure scenario and exposure estimationThis DU CSR is based on exposure estimation for PROC 13 using Ecetoc TRA v3 The contributing scenario information is shown in table A4 The exposure estimate is shown in table A5
6 Risk characterisation
The risk characterisation is shown in Table A5 The quantitative assessment shows that the combined RCR for systemic effects is below 1 Adverse irritancy effects are controlled by substance concentration (lt 10 ) in the product and no local effects are expected Nevertheless personal protective equipment is available for non routine intervention when there is potential for direct contact (Tyvek suit nitrile gloves and chemically resistant face shield)
All other ingredients in the mixture are non hazardous and so the combined risk to the mixture is also considered to be controlled
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 49
Scenario name
Process Category (PROC)
Type of setting Is substance a solid
VP or volatiles (Pa) at process temperature
Duration of activity [hoursday]
Use of ventilation
Use of respiratory protection
Substance in preparation
Dermal PPEGloves
dipping PROC 13 industrial No 10 1 - 4 hours Indoors with good general ventilation
No 1 - 5 No
These tables are copied from Ecetoc TRA v3 with minor
amendments for clarity
Table A4 Contributing scenarioConditions of use
Table A5 Exposure estimates and risk characterisation ratios
Scenario name
Long-term inhalative Exposure Estimate (ppm)
Long-terminhalative Exposure Estimate (mgm3)
Long-term DermalExposure Estimate(mgkgday))
Short-term InhalativeExposure Estimate(mgm3)
Local Dermal Exposure Estimate (μgcm2)
Risk CharacterisationRatio - Long-term Inhalation
Risk CharacterisationRatio - Long-term Dermal
Risk CharacterisationRatio - Long-term Total Exposure
dipping 084 105 24 70 400 042 039 081
END of Example 5 (own exposure scenario approach with modelled data)
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report50
Appendix 2 Contributing scenario example
The contributing scenario that provides the basis for example 3 in Appendix 1 is presented here together with the corresponding exposure estimate and risk characterisation25 The contributing scenario received from the supplier describes the use (dipping PROC 13) and specifies LEV for full shift operation
229 Control of worker exposure Dipping immersion and pouring (PROC 13)
239 Worker exposure Dipping immersion and pouring (PROC 13)
25 Taken from ES2 contributing scenario 9 in ldquoillustrative example of exposure scenariosrdquo
Product (article) characteristicsLimit the substance content in the product to 5Amount used (or containted in articles) frequency and duration of useexposureCovers daily exposures up to 8 hoursTechnical and organisation conditions and measuresProvide a basic standard of general ventilation (1 to 3 air changes per hour)Local exhaust ventilation - efficiency of at least 900Other conditions affecting workers exposureIndoor useAssumes process temperature up to 400 oCAdditional good practice advice Obligations according to Article 37(4) of REACH do not applyUse suitable eye protection Personal measures have to be applied in case of potential exposure onlyWear suitable gloves tested to EN374 Personal measures have to be applied in case of potential exposure only
Route of exposure and type of effects Exposure estimate RCRInhalation systemic long-term 25 mgm3 (TRA Worker 30) 0101Dermal systemic long-term 2742 mgkg bwday (TRA Worker 30) 0392Combined routes systemic long-term 0493
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 51
Appendix 3 Specifying risk management measures
A crucial aspect of a DU CSR is to establish the risk management measures (RMMs) to ensure that the risk is controlled When the DU CSR is prepared for a customer site clear communication of appropriate RMMs is vital Some pointers on describing the risk management measures are provided here
bull Specify the release estimationefficiency that the assessment is based on or details of the conditions on site
bull When using SPERCs or literature sources such as an OECD Emission Scenario Document include all the relevant supporting information
bull When an RMM is required in the workplace engineering controls such as process design measures to prevent or reduce personal exposure including containment and LEV should be considered before personal protective measures in accordance with European health and safety legislation and good occupational hygiene practice
bull When PPE is required be as detailed as possible on what is adequate and suitable For example where possible specify the filter type necessary in respiratory protective equipment (RPE) the material for gloves and the relevant protective clothing with reference to European Standards Also indicate the degree of management and training required to make sure the implemented PPE provides the required level of effectiveness
bull Typical conditions of use are available on industry sector websites and are implemented in some software (eg ECETOC TRA version 31) and further development is continuing These are described in documents termed SWEDs SCEDs and SPERCs (for workers consumers and the environment respectively) See the glossary for definitions
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report52
Appendix 4 Glossary
Binding occupational exposure limit value (BOELV) BOELVs which are binding values established at EU level take account of socio-economic and technical feasibility factors as well as the factors considered when establishing IOELVs
Competent person A competent person is described in REACH Annex I as someone who has ldquoappropriate experience and received appropriate training including refresher trainingrdquo What is ldquoappropriaterdquo will depend on the complexity of the situation but should enable them to identify the hazards evaluate the risks and recommend appropriate control measures The term ldquocompetent personrdquo may also be defined in national legislation or guidance
Conditions of use Conditions of use include the operational conditions (OCs) and risk management measures (RMMs)
Contributing scenario A contributing scenario is the set of conditions of use (OCs and RMMs) for a particular task or activity within a ldquouserdquo that relates to the exposure of a specific risk receptor (environment or human)
Chemical safety assessment (CSA) A chemical safety assessment has to be performed by registrants for substances manufactured or imported in quantities starting at 10 tonnes per year A downstream user may choose to perform a downstream user CSA if their uses are not addressed by their supplier
The CSA is the process that identifies and describes the conditions under which the manufacturing and use of a substance is considered to be safe It has three major steps hazard assessment exposure assessment and risk characterisation The process needs to be documented adequately and the results have to be documented in a chemical safety report (CSR) which is to be submitted to the European Chemicals Agency as part of the respective registration dossier The purpose is to make sure that the risks related to the substance are controlled
Chemical safety report (CSR) The chemical safety report documents the chemical safety assessment undertaken as part of the REACH registration process and is the key source from which the registrant provides information to all users of chemicals through the exposure scenarios It also forms a basis for other REACH processes including substance evaluation authorisation and restriction
Derived minimal effect level (DMEL) A reference risk level which should be used to better target risk management measures for substances for which no DNEL can be derived such as nonthreshold mutagenscarcinogens
Derived no effect level (DNEL) Levels of exposure to a substance above which humans should not be exposed Manufacturers and importers of chemical substances are required to calculate DNELs as part of their chemical safety assessment (CSA) for any substance used in quantities of 10 tonnes or more per year The DNEL is communicated to recipients in an extended safety data sheet
Downstream user (DU) Any natural or legal person within the EU (other than manufacturers or importers) who uses a substance
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 53
either on its own or in a mixture in their industrial or professional activities Examples include processors formulators and packagers Distributors and con-sumers are not considered downstream users
Downstream user chemical safety assessment (DU CSA) A downstream user chemical safety assessment establishes the conditions of safe use for a substance for the downstream usersrsquo own use or the use(s) of their customers when this information is not provided by the supplier Downstream users can apply the hazard conclusions provided by the suppliers when performing the DU CSA for their own uses
Downstream user chemical safety report (DU CSR) The downstream user chemical safety report documents the chemical safety assessment undertaken by the downstream user
ECHA The European Chemicals Agency is an agency of the European Union which manages the technical scientific and administrative aspects of REACH CLP the Biocidal Products Regulation and PIC
Exposure scenario (ES) An exposure scenario is a set of information describing the conditions during manufacturing or use of a substance that may give rise to exposure to humans andor to the environment A final ES describes the conditions under which the risk is considered adequately controlled
Identified use A use of a substance on its own or in a mixture or a use of a mixture that is intended by actors in the supply chain including their own use or that is made known to them in writing by an immediate downstream user Where an exposure assessment and a risk characterisation is required the identified use is a use that had been assessed by the registrant or downstream user and which is covered in the exposure scenarios attached to the SDS
Indicative occupational exposure limit value (IOELV) These community IOELVs are health-based non-binding values derived from the most recent scientific data available at the moment of their adoption They set threshold levels of exposure below which in general no detrimental effects are expected for any given substance after short term or daily exposure over a working life time
Operational conditions (OC) The operational conditions are the set of information on the conditions under which a substance is used They describe the types of activities to which the exposure scenario relates how frequently how often and for how long a substance is used and in which type of process at which temperatures etc Only parameters influencing the exposure level are included in the exposure scenario
Persistent bio-accumulative and toxic (PBT) Persistent bio-accumulative and toxic substances (PBTs) are chemicals that do not easily degrade in the environment PBTs typically accumulate in fatty tissues and are metabolised slowly often increasing in concentration within the food chain Certain PBTs have been linked to adverse health effects in both humans and animals
Predicted no effect concentration (PNEC) Concentration of the substance below which adverse effects in the environmental sphere of concern are not expected to occur
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report54
REACH REACH is the European Community Regulation on chemicals and their safe use (EC 19072006) It deals with the Registration Evaluation Authorisation and Restriction of chemical substances The law entered into force on 1 June 2007
The purpose of REACH is to ensure a high level of protection of human health and the environment including the promotion of alternative methods for assessment of hazards of substances At the same time REACH aims to promote the free circulation of substances on the internal market while enhancing competitiveness and innovation
Risk characterisation ratio (RCR) The risk characterisation ratio is the ratio of the predicted or calculated exposure to the predicted no-effect concentrations (PNECs) or derived no-effect levels (DNELs) for environmental and human exposure respectively When the RCR is less than 1 the risk is considered to be controlled for the conditions of use for which the exposure was determined
Risk management measures (RMMs) The term risk management measure (RMM) means an activity or device that reduces or avoids the direct and indirect exposure of humans (including workers and consumers) and the different environment compartments to a substance during its use Risk management measures applied in industrial uses include local exhaust ventilation (LEV) waste gas incinerators or on-site and municipal waste water treatment and personal protective equipment (PPE)
Safe use of mixtures information (SUMI) Downstream user sector organisations are developing generic safe use of mixtures information (SUMI) sheets SUMIs describe the conditions of safe use for a given use of a mixture in a readily understandable way that is sector specific
Sector specific worker exposure description (SWED) SWEDs document typical conditions of use for a given activityprocess in a given sector The content of the SWED can be communicated to the end-user using the associated SUMI (a harmonised form for safe use of mixtures information in a language easily understandable by the end-user and which is attached to the SDS)
Specific consumer exposure determinant (SCED) SCEDs document the typical conditions of use (such as habits and practices of consumers and assumptions on the product design) related to substances in consumer products
Specific environmental release category (SPERC) SPERCs document the typical conditions of use and emission factors for a given activityprocess from the environmental perspective
Use Use means any processing formulation consumption storage keeping treatment filling into containers transfer from one container to another mixing and production of an article or any other utilisation In general a use is any activity carried out with a substance as such or in a mixture
Use descriptor system Set of five descriptors which can be used to briefly describe identified uses in a standardised way and to build the short title of an exposure scenario The descriptors are designed to harmonise and facilitate how uses are described in the supply chain The five descriptors are
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 55
bull Sectors of use (SU) bull Chemical product category (PC) bull Process category (PROC) bull Environmental release category (ERC) and bull Article category (AC)
UVCB Substance of unknown or variable composition complex reaction products or biological materials
Very persistent very bio-accumulative (vPvB) These are substances which are very persistent (very difficult to break down) and very bioaccumulative in living organisms As a result they can build up in the food chain to levels which are harmful to humans and the environment
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report56
Appendix 5 Useful references and links
DOCUMENTS
gtgt ECHA ldquoGuidance for downstream usersrdquo httpechaeuropaeudocuments1016213634du_enpdf
gtgt e-Guide 01 ldquoSDS and ES - advice for recipientsrdquo httpviewpagetigercomECHAeGuide1-1Issue1
gtgt Practical guide 13 ldquohow downstream users can handle exposure scenariosrdquo httpechaeuropaeudocuments1016213655du_practical_guide_13_enpdf
gtgt Practical Guide 14 How to prepare toxicological summaries in IUCLID and how to derive DNELs httpwwwechaeuropaeudocuments1016213655pg_14_on_hazard_endpoint_enpdf
gtgt Practical Guide 15 How to undertake a qualitative human health assessment and document it in a chemical safety report httpechaeuropaeudocuments1016213655pg_15_qualitative-human_health_assessment_ documenting_enpdf
gtgt ECHA Guidance on information requirements and chemical safety assessment (IRampCSA) httpechaeuropaeuguidance-documentsguidance-on-information-requirements-and-chemical- safety-assessment
gtgt DUCC ldquoReport on experience gained with performing a Downstream User Chemical Safety Assessment (DU CSA) and developing a Downstream User Chemical Safety Report (DU CSR)rdquo httpducceudocumentsDUCC Orientation DU CSA v1 June 2012pdf
ECHA WEBSITE
gtgt Downstream user pages httpechaeuropaeuregulationsreachdownstream-users
gtgt ECHA-term httpecha-termechaeuropaeu
gtgt Reporting to ECHA httpechaeuropaeusupportdossier-submission-toolsreach-itdownstream-user-report
gtgt Guidance documents httpechaeuropaeusupportguidance
gtgt REACH legislation httpechaeuropaeuregulationsreachlegislation
gtgt National and ECHA Helpdesks httpechaeuropaeusupporthelpdesks
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
How to prepare a downstream user chemical safety assessment and report 57
gtgt ECHArsquos accredited stakeholder organisations httpechaeuropaeuabout-uspartners-and-networksstakeholdersechas-accredited-stakeholder- organisations
Websites of other organisations
gtgt Downstream Users of Chemicals Coordination Groups httpwwwducceu
gtgt European Agency for Safety and Health at Work httpsoshaeuropaeuen
gtgt Exposure Estimation Tool owners See Table 4
gtgt OECD eChemPortal httpwwwechemportalorg
gtgt Gestis database httpwwwdguvdeifaGefahrstoffdatenbankenGESTIS-Stoffdatenbank
gtgt Cefic httpwwwceficorgIndustry-supportImplementing-reach
gtgt CeficConcaweDUCCFECC Guidance on how to check ES - Messages to communicate in the supply chain on extended SDS for substances II httpwwwceficorgDocumentsIndustrySupportCeficcommunicationonextSDS_130711pdf
gtgt BAuA the German Federal Institute for Occupational Safety and Health httpwwwbauadeEMKG
gtgt HSE Health and Safety Executive httpwwwcoshh-essentialsorguk
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132
european chemicals agencyannankatu 18 po box 400 fi-00121 helsinki finlandechaeuropaeu
ECHA
-15-B-14-EN - ED
-AE-15-001-EN
-N - ISBN
978-92-9247-534-5 - ISSN 1831-6727 - D
OI 102823159132